A fair die is rolled 72 times and the percentage of 6s is recorded. What is the probability that at most 10% of the rolls are 6s

Answers

Answer 1

Answer:

P ([tex]\hat p[/tex] ≤ 0.10)

Step-by-step explanation:

The probability in terms of statistics for this given problem can be written as follows.

Let consider X to the random variable that represents the number of 6's in 7 throws of a dice, then:

X [tex]\sim[/tex]Bin ( n = 72, p = 0.167)

E(X) = np

E(X) = 72× 0.167

E(X) = 12.024

E(X) [tex]\simeq[/tex]  12

p+q =1

q = 1 - p

q = 1 - 0.167

q = 0.833

V(X) = npq

V(X) = 72 × 0.167 × 0.833

V(X) = 10.02

V(X) [tex]\simeq[/tex] 10

∴ X [tex]\sim[/tex] N ([tex]\mu = 12, \sigma^2 =10[/tex])

⇒ [tex]\hat p = \dfrac{X}{n} \sim N ( p, \dfrac{pq}{n})[/tex]

where p = 0.167 and [tex]\dfrac{pq}{n}[/tex] = [tex]\dfrac{0.167 \times 0.833}{72}[/tex] = 0.00193

∴ P(at most 10% of rolls are 6's)

i.e

P ([tex]\hat p[/tex] ≤ 0.10)


Related Questions

Solve the system of equations.
y = x2 - 2
y = -2x + 1

Answers

Answer:

x = -3 and y = 7 or x = 1 and y = -1

Step-by-step explanation:

can someone please help me with this question :)

Answers

DoNt mind this tehee

Which expression is equivalent to 10i/2-i

Answers

Answer:

A reduce the fraction is

5\1

Answer:

C. 4i-2

Step-by-step explanation:

EDGE 2020

PART 5 - Mathematical knowledge
What is the area of a parallelogram if its length is x +4 and its height is x +3?
A 4x + 14
B
2x + 7
C x2 + 12x + 7
D x2+ 7x + 12
Click the button or type the letter to the left of your answer

Answers

D) x^2 + 7x + 12 is the answer

3. The minimum payment on a credit card is based on the total amount owed. A credit card company uses the following rules: For a bill less than $20 the entire amount is due, for a bill of at least $20 but less than $500, the minimum due is $20. For a bill of at least $500 but less than $1000 the minimum due is $40 and for a bill of at least $1000 but less than $1500 the minimum due is $80 dollars. For a bill of $1500 or more the minimum due is 1/10th of the bill.
a. Write a function to describe the minimum payment due.
b. What is the minimum payment due if the bill is $345?
c. What is the minimum payment due if the bill is $1410?
d. What is the minimum payment due if the bill is $1700?

Answers

Answer:

b

Step-by-step explanation:

find the area of the blue shaded shape

Answers

Answer:

Hey there!

The big square has an area of 6x6 or 36 units.

However, we subtract 8 to get 28 because the 8 white squares do not count.

Let me know if this helps :)

Answer:

28units²

Step-by-step explanation:

6² = 36

36 - 8 = 28

if you're currently making $6.75 per hour and you were offered a new job that pays $7.47 per hour, what will be your percent of increase in pay?

Answers

Answer:

10.67% increase

Step-by-step explanation:

We can find percent increase with (difference/original) x 100

7.47 - 6.75

= 0.72 (difference)

(0.72/6.75) x 100

= 10.67% increase

Find the radius of a sphere with a volume of 456cm^3
(show work)

Answers

Answer:

r≈4.775

Step-by-step explanation:

the formula for this is: r=(3V /4π)^⅓

Find the average value of the function over the given interval. (Round your answer to three decimal places.) f(x)

Answers

Complete Question  

Find the average value of the function over the given interval. (Round your answer to three decimal places.) f(x) = 12e^x, [−6, 6] Find all values of x in the interval for which the function equals its average value. (Enter your answers as a comma-separated list. Round your answers to three decimal places.)

Answer:

The  average is  

  [tex]AV  =  403[/tex]

The value of  x is

   [tex]x =  4[/tex]

Step-by-step explanation:

From the question we are told that

  The equation is  [tex]f(t) =  12e^x[/tex]

  The  points consider is  [-6 , 6]

Generally the average value of the function over the given interval is mathematically represented as

          [tex]AV  =  \frac{1}{z-w} \int\limits^ z_w {f(x)} \, dx[/tex]

          [tex]AV  =  \frac{1}{ 6 - (-6)}  \int\limits^{6}_{-6} { 12e^x} \, dx[/tex]

          [tex]AV  =  \frac{1}{12 } e^x| \left 6} \atop {-6}} \right.[/tex]

          [tex]AV  = e^6 -e^{-6}[/tex]

          [tex]AV  =  403[/tex]

Generally when the function equal the average we have that

        [tex]f(x) =  12e^{x} =  403[/tex]

        [tex]e^{x} =  34[/tex]

          [tex]x =  ln(34)[/tex]

        [tex]x =  4[/tex]

         

       

x + 2y = 33
x-y = 11

Answers

Answer:

[tex]x=\frac{55}{3},\:y=\frac{22}{3}[/tex]

Step-by-step explanation:

Solve by Substitution ;

[tex]\begin{bmatrix}x+2y=33\\ x-y=11\end{bmatrix}\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:x+2y=33:\quad x=33-2y\\\\\mathrm{Subsititute\:}x=33-2y\\\\\begin{bmatrix}33-2y-y=11\end{bmatrix}\\\\Simplify\\\begin{bmatrix}33-3y=11\end{bmatrix}\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:33-3y=11:\quad y=\frac{22}{3}\\\mathrm{For\:}x=33-2y\\\\\mathrm{Subsititute\:}y=\frac{22}{3}\\x=33-2\times\frac{22}{3}\\\\x=\frac{55}{3}\\\\x=\frac{55}{3},\:y=\frac{22}{3}[/tex]

PLS ANSWER BEST ANSWER GETS BRAINLIEST Tim wants to decorate a rectangular card with a width of 1/2 inch and an area of 7/4 square inches. Find the length of the card in inches?

Answers

Answer:

[tex]\frac{7}{2}[/tex]in

Step-by-step explanation:

First you must set up an equation. [tex]\frac{1}{2}x=\frac{7}{4}[/tex]

Then, you must solve for x.          [tex]x=\frac{7}{2}[/tex]

Please help me out with this!

Answers

third

hope it helps you

Answer: (6^-8/7^-12)

Step-by-step explanation:

In this type of problems, you apply the laws of indices which stated that

( a²/b²)³ =( a²×³/b²×³)

= ( a6/b6)

From this question now, applying the above principle

(6²/7³)-4

= (6²×-⁴/7³×-⁴)

= (6^-8/7^-12)

So the answer is C

What is two plus two?

Answers

4 simple? Hope you got it!

Answer:

4 you dumba**. Jesus christ

Step-by-step explanation:

Evaluate the expression, given functions f and g: f(x) = 3x – 2, g(x) = 7 – x2.
3f(1) - 49(-2)

Answers

f(x) = 3x – 2, g(x) = 7 – x2.

3f(1) - 49(-2)

Substitute the given value into the function and evaluate.

101

The value of 3f(1) - 49(-2) for the given function f(x) = 3x – 2 will be 101.

What is a function?

A certain kind of relationship called a function binds inputs to essentially one output.

A function can be regarded as a computer, which is helpful.

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

Given the function,

f(x) = 3x – 2

Now,

f(1) = 3(1) - 2 = 1

So,

3f(1) - 49(-2) = 3×1 - 49(-2)

⇒ 3 + 98 = 101

Hence "The value of 3f(1) - 49(-2) for the given function f(x) = 3x – 2 will be 101".

For more about the function,

brainly.com/question/23712366

#SPJ2

What is the solution Set to 2a+6=2a+5+1

Answers

Answer:

Infinite Amount of Solutions

Step-by-step explanation:

Step 1: Write out equation

2a + 6 = 2a + 5 + 1

Step 2: Combine like terms

2a + 6 = 2a + 6

Here we see that we have the same slope and same y-intercept or the same equation. When this happens, our solution set is infinite amount of solutions, as any value a can be plugged in and would be true.

Select the correct inequality to make a true statement
Please help

Answers

Answer:

2/5 is greater

Step-by-step explanation:

to compare you need to make them common denominator, and that could be10. to make both denominators equal to ten just multiply the top and bottom of 2/5 by 2. this will turn it into 4/10. 4/10 is greater than 3/10

The solution is : 2/5> 3/10

2/5 is greater than 3/10

What is fraction?

A fraction represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.

Here, we have,

the given fractions are,

2/5 and 3/10

now, we have,

to compare you need to make them common denominator,

and that could be10.

to make both denominators equal to ten just multiply the top and bottom of 2/5 by 2.

i.e. 2*2/5*2

=4/10

this will turn it into 4/10.

now, we get,

4/10 is greater than 3/10

Hence, 2/5> 3/10 , 2/5 is greater than 3/10.

To learn more on fraction click:

brainly.com/question/10354322

#SPJ2

The number of students in a school's math club is ten less than twice the number of students in the art club. Let a represent the number of students in the art club. Write an expression for the number of students in the math club.

Answers

Answer:    2a - 10

Step-by-step explanation:

a represents the number of students in the art club.

The number of students in a school's math club is ten less than twice the number of students in the art club.

ten less = - 10

twice the number of students in the art club = 2*a

2a - 10 = the number of students in the math club

If you go on a road trip of 270 miles in the mountains and 7/10 of the trip is downhill, how many miles of the trip are not downhill? Reduce to the lowest terms.

Answers

Answer:Answer:

81 miles

Step-by-step explanation:

From the question 7/10 of the trip has been said to be downhill. It therefore means that 3/10 is not downhill.

Miles = 270

Downhill = 7/10

Not downhill = 3/10

Now we have To calculate Miles that are not downhill (uphill)

But first I calculated for the number of downhill miles

270x7/10

Downhill = 189 miles

To get the number of not downhill miles

I subtracted 189 from the total number of miles on the question.

270 - 189

= 81 Miles.

Therefore 81 Miles of the trip are not downhill.

If you have anymore questions or need clarity please let me know on the comment section. Thank you and Good luck!

Step-by-step explanation:

Solve xy - 3 = k solve for x

Answers

Answer:

x=(k+3)/y

Step-by-step explanation

First, we simplify by adding 3 to both sides of the equation

xy-3+3=k+3

Now it's xy=k+3

To get x we divide both sides by y

So x=(k+3)/y

Answer:

[tex]x = \frac{k + 3}{y} [/tex]

Step-by-step explanation:

Do all u can to make x stand alone.

Just obey the rules of fhe operations when they cross the equal sign.

15m + (- 5m) combine like terms

Answers

Answer:

10 m

Step-by-step explanation:

15m - 5m = 10 m

both numbers have m which are alike

Answer: 10m

Step-by-step explanation: you subtract five from fifteen

please show the work. ​

Answers

I can’t really see the picture. But what’s the question

The average daily sleep time for a domestic cat is 11.5 hours. What is this in hours and minutes?
b) An African lion sleeps 20% more than the cat. What is the sleep time of the African lion?

mathematics PLEASE HELP

Answers

Part A

1 hour = 60 minutes

0.5 hours = 30 minutes (multiply both sides by 0.5)

11.5 hours = 11 hours + 0.5 hours

11.5 hours = 11 hours + 30 minutes

11.5 hours = 11 hours, 30 minutes is the answer

========================================

Part B

20% = 20/100 = 0.20

The lion sleeps 20% more than the cat, which means the lion sleeps 0.20*11.5 = 2.3 hours more

This leads to 11.5 + 2.3 = 13.8 hours being the total time the lion sleeps

1 hour = 60 minutes

0.8 hours = 48 minutes (multiply both sides by 0.8)

13.8 hours = 13 hours + 0.8 hours

13.8 hours = 13 hours + 48 minutes

13.8 hours = 13 hours, 48 minutes is the amount of time the lion sleeps

if you apply the changes below to the quadratic parent function, f(x)=x2, what is the equation of the new function shift 3 units left vertically stretch by a factor of 4 reflect over the a axis

Answers

Answer:  B. g(x) = –4(x – 3)2

Step-by-step explanation: To apply the changes to the equation of a vertical stretch of 4 and a translation of 3 units to the right, as well as the correct answer would be choice B.

The reason for this is when you apply a vertical stretch, because it changes the y-values (which causes it to vertically stretch or appear skinnier when graphed), you would multiply 4 to f(x) which would look like 4x^2.

Then, since you have a reflection over the x-axis, you must multiply a -1 to f(x) to reflect it over the x-axis which would result in -4x^2.

Finally, it also asks to shift the graph right 3 which by moving it right, you change the x values meaning you will perform f(x-3) to achieve this (subtract the value from x when you move right, and add the value to x when you move left).

y’all pls help me :(

Answers

Answer: B

Step-by-step explanation:

When you are multiplying exponents, if the base is the same, then you can directly add the exponents together.

We can see that both bases are 6. That means we can add the exponents.

[tex]3+\frac{1}{4}[/tex]                             [common denominator]

[tex]\frac{12}{4}+\frac{1}{4}[/tex]                            [add]

[tex]\frac{13}{4}[/tex]

Now, we know that the answer will be [tex]6^1^3^/^4[/tex].

Determine the number and type of roots for the equation using one of the given roots. Then find each root. (inclusive of imaginary roots.) 1. x^3-7x+6=0;1 2. x^3-3x^2+25x+29=0;-1 3.x^3-4x^2-3x+18=0;3 Find all the zeros of the function 4. f(x)=x^2+4x-12 5.f(x)=x^3-3x^2+x+5 6. f(x)=x^3-4x^2-7x+10 Write the simplest polynomial function with integral coefficients that has the given zeros. 7. -5,-1,3,7 8. 4,2+3i (thank you so much in advance, it would mean a lot, and it is urgently needed, hence the high reward, thank you! Have a great day)

Answers

Step-by-step explanation:

"Determine the number and type of roots for the equation using one of the given roots. Then find each root. (inclusive of imaginary roots.)"

Given one of the roots, we can use either long division or grouping to factor each cubic equation into a binomial and a quadratic.  I'll use grouping.

Then, we can either factor or use the quadratic equation to find the remaining two roots.

1. x³ − 7x + 6 = 0; 1

x³ − x − 6x + 6 = 0

x (x² − 1) − 6 (x − 1) = 0

x (x + 1) (x − 1) − 6 (x − 1) = 0

(x² + x − 6) (x − 1) = 0

(x + 3) (x − 2) (x − 1) = 0

The remaining two roots are both real: -3 and +2.

2. x³ − 3x² + 25x + 29 = 0; -1

x³ − 3x² + 25x + 29 = 0

x³ − 3x² − 4x + 29x + 29 = 0

x (x² − 3x − 4) + 29 (x + 1) = 0

x (x − 4) (x + 1) + 29 (x + 1) = 0

(x² − 4x + 29) (x + 1) = 0

x = [ 4 ± √(16 − 4(1)(29)) ] / 2

x = (4 ± 10i) / 2

x = 2 ± 5i

The remaining two roots are both imaginary: 2 − 5i and 2 + 5i.

3. x³ − 4x² − 3x + 18 = 0; 3

x³ − 4x² − 3x + 18 = 0

x³ − 4x² + 3x − 6x + 18 = 0

x (x² − 4x + 3) − 6 (x − 3) = 0

x (x − 1)(x − 3) − 6 (x − 3) = 0

(x² − x − 6) (x − 3) = 0

(x − 3) (x + 2) (x − 3) = 0

The remaining two roots are both real: -2 and +3.

"Find all the zeros of the function"

For quadratics, we can factor using either AC method or quadratic formula.  For cubics, we can use the rational root test to check for possible rational roots.

4. f(x) = x² + 4x − 12

0 = (x + 6) (x − 2)

x = -6 or +2

5. f(x) = x³ − 3x² + x + 5

Possible rational roots: ±1/1, ±5/1

f(-1) = 0

-1 is a root, so use grouping to factor.

f(x) = x³ − 3x² − 4x + 5x + 5

f(x) = x (x² − 3x − 4) + 5 (x + 1)

f(x) = x (x − 4) (x + 1) + 5 (x + 1)

f(x) = (x² − 4x + 5) (x + 1)

x = [ 4 ± √(16 − 4(1)(5)) ] / 2

x = (4 ± 2i) / 2

x = 2 ± i

The three roots are x = -1, x = 2 − i, x = 2 + i.

6. f(x) = x³ − 4x² − 7x + 10

Possible rational roots: ±1/1, ±2/1, ±5/1, ±10/1

f(-2) = 0, f(1) = 0, f(5) = 0

The three roots are x = -2, x = 1, and x = 5.

"Write the simplest polynomial function with integral coefficients that has the given zeros."

A polynomial with roots a, b, c, is f(x) = (x − a) (x − b) (x − c).  Remember that imaginary roots come in conjugate pairs.

7. -5, -1, 3, 7

f(x) = (x + 5) (x + 1) (x − 3) (x − 7)

f(x) = (x² + 6x + 5) (x² − 10x + 21)

f(x) = x² (x² − 10x + 21) + 6x (x² − 10x + 21) + 5 (x² − 10x + 21)

f(x) = x⁴ − 10x³ + 21x² + 6x³ − 60x² + 126x + 5x² − 50x + 105

f(x) = x⁴ − 4x³ − 34x² + 76x − 50x + 105

8. 4, 2+3i

If 2 + 3i is a root, then 2 − 3i is also a root.

f(x) = (x − 4) (x − (2+3i)) (x − (2−3i))

f(x) = (x − 4) (x² − (2+3i) x − (2−3i) x + (2+3i)(2−3i))

f(x) = (x − 4) (x² − (2+3i+2−3i) x + (4+9))

f(x) = (x − 4) (x² − 4x + 13)

f(x) = x (x² − 4x + 13) − 4 (x² − 4x + 13)

f(x) = x³ − 4x² + 13x − 4x² + 16x − 52

f(x) = x³ − 8x² + 29x − 52

A number cube numbered 1-6 is rolled once. What is the probability that the side facing up shows a 4

Answers

Answer:

it will be one out six to roll a four

Step-by-step explanation:

there is one being rolled to be a 4 out of six

Two functions represent the composite function h(x) = (x – 1)³ + 10 so that h(x) = (g compose f)(x). Given f(x) = x + a and g(x) = x³ + b, what values of a and b would make the composition true?

Answers

Answer:

a=-1

b=10

Step-by-step explanation:

Answer:

a: -1

b: 10

edge 2020

The ABC company's brand has a market share of 30%. Suppose that in a survey, 800 consumers of the product are asked which brand they prefer. What is the probability that more than 32% of the respondents say they prefer ABC's brand?

Answers

Answer: 0.68

Step-by-step explanation:

given data:

ABC market share = 30%

number of customers surveyed = 800

probability that more than 32% prefers ABC

Solution:

32% of 800

= 256 persons

p ( x ≥ 256 )

= 1 - ( 256/800 )

= 1 - 0.32

= 0.68

the probabiliy that more than 32% of those who carried out the survey would prefer ABC brand is 0.68.

Match each fraction with its percent equivalent.
1/5 9/10 21/25 3/4 75% 84% 90% 20%

Answers

1/5 - 20%
9/10 - 90%
21/25 - 84%
3/4 - 75%

Which numbers are factors of 32? Check all that apply.

1
2
3
4
6
8​

Answers

1,2,4,8 (when divided by 32, the result is a whole number. This means that they can be multiplied to make 32)

Answer:

The answer is, 1,2,4, and 8

Step-by-step explanation:

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Which quality of service (QoS) mechanism provided by the network does real-time transport protocol (RTP) rely on to guarantee a certain QoS for the data streams it carries Many private sector organizations require a formal statement, called a(n) ____, which provides search authorization and furnishes much of the same information usually found in a public sector search warrant. What is the function of the adjective phrase "in your pottery class" in this sentence? I think the girl in your pottery class might be my neighbor, but Im not sure. It modifies the noun girl. It modifies the verb think. It shows possession of the noun neighbor. It answers the question "Who is the girl"? If a and b are real numbers, then (a + b)2 = a2 + b2 Provide a counterexample for the statement. a = 0 and b = 1 a = 1 and b = 0 a = 1 and b = 2 a = 0 and b = 0 Which equation represents exponential decay?A. y = 160 (31)1B. y= (3.1)C. y = 10(0.13)D. y = 100(1.03)* The scale for a map to actual distance is 2 cm to 100 mi. The driving distance on the map between Los Angeles and Las Vegas is 5.4 cm. What is the actual distance, in miles, between Los Angeles and Las Vegas? Complaints of fair housing discrimination must be filed with the Human Rights Commission within 180 days of the alleged discriminatory act. Complaints must be filed with HUD within:_______ The solubility of silver sulfate (Ag2SO4), in moles per liter, can be expressed in terms of the resulting ion concentrations. Which relationship is correct? How do you think the lengths of the best films compare to the lengths for the best animated films Convert 1750042 to scientific notation. what else convinced the French to support the Americans during the Revolutionary War? ABCD is a trapezium.10 cmAB7 cm9 cmD15 cmCalculate the area of ABCD. 7. If a school has 70 computers in the ratio of 3 desktops for every 4 laptops, how manyare desktops? Explain your answer. Hurry please helpThe permitter of a rectangle pool is 160 m the land of the pool is 20 m more than its with what is the length 1. Which sentence best states the main idea of the passage?a. We are attracted to people whose ideas are similar to our own because they make us feel our own ideas are good ones.b. Nearness and similarity strongly influence which people we are attracted to.c. Research will soon reveal whether relationships formed on the computer are lasting.d. A University of Michigan study found that students chose friends with attitudes similar to their own. Hurry please ???????????????????????????????????????? Algebra 2 for cr sem 1 Rank the metals from most reactive (1) to least reactive (3). which number correctly completes the series?...cinquante-quatre, ____ cinquante-six, cinquante-sept...A. cinquante-huitB. cinquante-troisC. cinquanteD. cinquante-cinq The smith want to fence their square garden which has an area of 289 square feet what would be the minimum amount of fencing needed to complete the project Round 630,379,982 to the nearest hundred thousand