The Bradenton Post polled 1,356 adults in the city to determine whether they wet their toothbrush before they put toothpaste on it. Of the respondents, 54% said they wet it first. Suppose 68% of all adults actually wet their toothbrush first. What are the mean and standard deviation of the sampling distribution?

Answers

Answer 1

Answer:

deviation = -95.50147493     mean = 61

Step-by-step explanation:

54% wet there brushes first

suppose 68% wet there brushes what is the mean

mean: a mean is where you add both numbers together to get a total then divide by how many numbers you added for now we wont need the amount of people we just need the percentages for this

54 + 68 = 122

we added to numbers so well divide by 2

122 divided by 2 or 122/2 is equal to 61

61 is our mean

standard deviation : this is were you take the known average 1356 adults and subtract the mean

1356- 61 = 1295 then divide by 1356 and times by 100

if the number is positive then the mean is higher than expected but luckily its a negative so its -95.50147493


Related Questions

This graph shows a proportional relationship between the number of cello players and the number of violin players in a music group. What is the constant of proportionality?

Answers

8

there are 8 violinists for each cellist.

Which ratios are equivalent to 10:16? Check all that apply. 30 to 48 25:35 StartFraction 40 Over 64 EndFraction 8:32 5 to 15

Answers

Answer:

30 to 48, 40/64

Step-by-step explanation:

Which ratios are equivalent to 10:16, and they gave us 30 to 48, 25:35, 40/64, 8/32 and 5 to 15.

For 30 to 48, we can mulitply the 10:16 by 3 to give us 30:48, so it is equal.

For 25:35, we simplify it to 5:7, while 10:16 is 5:8, so they are not equal.

For 40/64, we can take 10:16 and multiply them by 4, getting the same number. Therefore, it is equal.

For 8/32, we can simplify it down to 1/4, while 10:16 simplifies down to 5:8, it is  not equal.

Lastly, for 5 to 15, w can simplify that to 1/3, and get 5:8 for 10:16, so it won't be equal.

A & C because they can both be reduced to 5:8

Which statement is true about the relationship between the amount of plant food remaining and the number of days? Can you help me with this problem

Answers

Answer:

I think you're missing something

Step-by-step explanation:

What is the relationship of the 6's in 966?

Answers

Answer:

10

Step-by-step explanation:

the 6 9_6 is ten times larger than the 6 96_, and the 6 96_ is 10 times smaller than the 6 9_6.

I think it would be 10

I need help arranging cards in a 4 x 4 grid with numbers 1-9 so that the sum of each row and each column is 20. This what the grid looks like:

Answers

Answer:

8, 2, 8, 2

7, 3, 7, 3

6, 4 6, 4

9, 1, 9, 1

Step-by-step explanation:

In the picture, it shows two of each number so I'm gonna base it off the picture but let me know if I should base it off the wording.

So we know that half of 20 is 10. This will be valuable information. So we need the sum of two numbers to equal 10. So for the rows we can just do 8+2+8+2, 7+3+7+3, 6+4+6+4, 9+1+9+1.

Since there are 18 numbers, I'm assuming we don't have to use all of them.

It’ll always be 8 and 8

if a $1000 investment earns %20 interest compounded annually, then the investment will double in value in how many years?

Answers

Answer:

           In four years.

Step-by-step explanation:

End of first year:

1000 + 20%•1000 = 1000 + 200 = $1200

End of second year:

1200 + 20%•1200 = 1200 + 240 = $1440

End of third year:

1440 + 20%•1440 = 1440 + 288 = $1728

End of fourth year:

1728 + 20%•1728 = 1728 + 345.6 = $2073.6  >2•$1000

Well 100% is 20%x4 so four years So no matter what number it would be 4 years

evaluate each expression: I-18I - I13I

Answers

|-18| = 18 and |13| = 13 so |-18|-|13|=5
the numbers become positive so |-18| - |-13| = 5

0.11 to the second power

Answers

Answer:

0.0121

Step-by-step explanation:

0.11 to the second power = 0.0121

Answer: 0.0121

Step-by-step explanation:

common sense

A hollow triangular prism is filled with cola. The prism holds 5 of cola. The length is 50cm, the base of the triangle is 20cm. What is the height of the triangle?

Answers

Answer:hi

Step-by-step explanation:

The answer is five because the 5 colas add up to 1 cola for one cm so the height is 5cm

please help asap i realy need to pass

Answers

Answer:

8/15

Step-by-step explanation:

24/46 = 0.5217391     rounds to 0.52

8/15 = 0.5333333...     rounds to 0.53     this is the answer

42/90 = 0.466666....   rounds to 0.47

5/9 = 0.55555.......   rounds to 0.56

mark as brainliest   please

Answer:

8/15

Step-by-step explanation:

I’m doing the quiz rn

What value of x satisfies the equation?

Answers

Answer:  The answer is D

Step-by-step explanation: First you distribute the 2 by x and 2 so you get 2x + 4 then you distribute -3 by x and -1 so you get -3x + 3 then you add up the two equations then yo get -x + 7 = 9 then you subtract the 7 on both sides so you get x = -2

The answer is x=-2

Explanation: There are two ways you can solve this equation. The easiest (but longer) way is to plug every answer (A, B, C, and D) as your x value and solve to see which one will equal -9. The second way is to isolate x to one side of the equation through simplifying.

Hope this helped!

this is a mobile home. how much do you think it costs?

Answers

Answer:

$70,000??

Step-by-step explanation:

Answer:

It might be around  $51,371

HELLLLPPPP PLZZZZZ I WILL MARK BRAINLEIST

Answers

Answer:

Step-by-step explanation:

4.

distance=2436-(-1020)=2436+1020=3456 ft

5.

in two turns points=3-4=-1

in 6 turns=-1/2×6=-3 points

6.

-23+40=17

she had 17 dollars balance.

Answer:

5 -3

Step-by-step explanation:

Jack read 20 pages of a book in 60 minutes. How many pages can he read in 75 minutes at the same rate? Write a proportional equation. Please help me answer this equation!!

Answers

Answer:

25 pages

Step-by-step explanation:

Create a proportion:

[tex]\frac{pages}{minutes}[/tex] = [tex]\frac{20}{60}[/tex] = [tex]\frac{x}{75}[/tex]

Cross multiply and solve for x, the number of pages in 75 minutes:

60x = 1500

x = 25

So, he can read 25 pages in 75 minutes at the same rate

25 pages


He read 1 page in 3 minutes for 60 minutes 75 is 15 more than 60 so what time 3 would equal 15 It would be 5 so you would add 5 more pages to the 20 pages and you would get 25

How much time has passed from the first clock to the second clock? The time passed is less than 1 hour. __?__ minutes.

Answers

Answer:

34 mins

Step-by-step explanation:

eqch number count by five then add four

Less then an hour and more then 30 minutes.
The answer is 32 minutes

Which statement is true about the relationship between the amount of plant food remaining and the number of days? Can you help me with this problem

Answers

Answer: I think it's "This is not a function because only one amount of plant food remains each day"....let me know if I am wrong though I am not sure.

what is inf + 0 get it right

Answers

Answer:

Step-by-step explanation:

Hdjfnfjfnf I u need cash just for the first week of

It would be inf. Explanation, since nothing is gettin added to inf it stays inf.

What is a pre-image??? SaberXTooth bro answer me!!!

Answers

The answer is how the image was to begin with

Answer:

Step-by-step explanation:Much is usually anticipated about the fierce and decidedly bloody clashes between Wolverine and Victor Creed, the man known as Sabretooth, even though these men are arguably two sides of the same coin. Each of them has deadly claws that rend and draw blood; each has a generous amount of fear and intimidation working for them; each has a healing factor that prevents them from being mortally wounded (eventually reaching preposterous levels of effectiveness); and each has killed and will kill if the situation calls for it. Yet there are differences, as well: Logan's skeleton, as well as his claws, are made of the unbreakable metal known as adamantium; and while there have often been instances where he's been shown to be merciless, he's not nearly as sadistic as Creed, who will not hesitate to kill even when there is no reason for it. Perhaps the difference that keeps us engaged, however, is the fact

A rectangle has an area of 14 cm squared. A scale factor of 2 is used to enlarge the rectangle. What is the area of the scaled rectangle? *

Answers

Answer:

69

Step-by-step explanation:

the answer would be 69

Enter 52.16 in expanded form.

Answers

Answer:

50 + 2 + 0.1 + 0.06

50+2+.1+.06

Basically you are writing out the value of each digit

PLEASE HELP NEED BEFORE YHE END OF THE DAY!!!!! Make an graph the y axis is the temperature C (the first column row to the left with the C) and the x axis is the sugar dissolved (the middle row).

Answers

Answer:

Do not forgot to label axis.

Step-by-step explanation:

Attached below is a graph.

Answer:

The image

Step-by-step explanation:

To do this you would have the left ones as the x coordinate and the ones in the middle as y coordinates

5x +2y=22
4x+y=17
In the system of equations above, what
is the value of x+y?
A. 5 B. 4 C. 3 D. 2

Answers

Answer:

A: 5

Step-by-step explanation:

4x + y = 17 --> y = 17 - 4x

5x + 2y = 22

<=> 5x + 2 . (17 - 4x) = 22

<=> 5x - 8x + 34 = 22

<=> 34 - 3x = 22

<=> 3x = 34 - 22 = 12

<=> x = 4

y = 17 - 4x = 17 - 4 . 4 = 17 - 16 = 1

So, x + y = 4 + 1 = 5

Answer: A. 5

Step 1: solve for y in 2nd equation
Y=-4x+17
Step 2: sub into first equation
5x+2(-4x+17)=22
Step 3: solve for x
5x-8x+34=22
-3x=-12
x=4
Step 4: plug x=4 into either equations
5(4)+2y=22
Step 5: solve for y
20+2y=22
2y=2
y=1
Conclusion: (4,1) or x=4, y=1

Now, ONLY look at the shortest 8 people (on the left, from Snooki 57 inches to Miley Cyrus 65 inches). Can you find the median height of these 8 people?

Answers

Answer: 60.875

Step-by-step explanation:

57+59+60+60+61+61+64+65= 487

then 487/8= 60.875

Answer:

60.5

Step-by-step explanation:

because in 8 options there is no middle instead you put 0 to 8 people, the middle of 1 to 8 is 4.5 then, there is the answer

NEEDS TO BE ANSWERED TODAY!!!!Order from least to greatest (turn them into decimals) a.) 104% b.)[tex]\sqrt{7}[/tex]c.) -[tex]\frac{3}{5}[/tex]d.)-1

Answers

Answer:

abcdefghijklmnopqrstuvwxyz

Answer:

104% ~1.04 b.)2.65 c.) -0.6 d.)-.01

Answer. -1, 3/-5, 104%, v7

A sample of 257 adults is selected. The adults are classified according to voter registration status ("registered" or "not registered"). They are also classified according to preferred source of current events information ("television", "newspapers", "radio", or "internet sites"). The results are given in the contingency table below. What is the relative frequency of adults in the sample who are not registered to vote? Round your answer to two decimal places.

Answers

Answer 2.12 because if the math is done the correct way hopefully that’s what anyone would get

The relative frequency of adults in the sample who are not registered to vote is 0.47.

What is the relative frequency?

Relative frequency is a statistical concept that refers to the proportion or percentage of observations or events in a given sample or population that fall into a particular category or have a particular characteristic.

We have,

To find the relative frequency of adults in the sample who are not registered to vote, we need to sum up the number of adults who are not registered:

22 + 39 + 21 + 39 = 121 and divide it by the total sample size which is 257.

Relative frequency of adults who are not registered to vote

= (number of adults who are not registered) / (total sample size)

Relative frequency of adults who are not registered to vote.

= 121/257

Relative frequency of adults who are not registered to vote

= 0.47 (rounded to two decimal places)

Therefore,

The relative frequency of adults in the sample who are not registered to vote is 0.47.

Learn more about relative frequency here:

https://brainly.com/question/29739263

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Given 11 different natural numbers, none greater than 20. Prove that two of these can be chosen, one of which divides the other.

Answers

Answer:11 honestly have no idea but im going to give my best answer it is 31

Answer:

777 838 3

Step-by-step explanation:

sood

Find the value of (58.27 + 41.73) x 0.6341.

Answers

You can use calculator in your mobile
The answer is 63.41 it’s simple

Sue deposited $1,500 into two different accounts. - She deposited $600 into an account that pays 7.5% simple interest. - She deposited $900 into an account that pays 6% compounded annually. If Sue does not deposit additional money into the accounts and she doesn't withdraw any money from the accounts, which is closest to the total balance she will have in the two accounts at the end of 5 years

Answers

915 I literally just had this question not too long ago.

The required total balance at the end of the 5 years is given as $1995.

What is simple interest?

Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan.

here,
Sue deposited $1,500 into two different accounts. - She deposited $600 into an account that pays 7.5% simple interest. - She deposited $900 into an account that pays 6% compounded annually.

Investment 1,
Amount = P(1 + rt)
Amount = 600(1 + 0.075×5)
Amount = $825

Investment 2,
Amount = P(1 + rt)
Amount = 900(1 + 0.06×5)
Amount = $1170

Total balance = 825 + 1170
Total balance = $1995

Thus, the required total balance at the end of the 5 years is given as $1995.

Learn more about simple interests here:

https://brainly.com/question/26457073

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how do you figure out the mean absolute deviant

Answers

Mean Absolute Deviation

Think about what each word means.

Just remember to find the mean, then find the deviation, then absolute value, and finally the mean again.

Mean Absolute Deviation.

To find mean absolute deviation, think bacwards.

Look it up in google and it will give u the meaning in about 1 second

Which pair of numbers have a greatest common factor of 3?

Answers

ghyc yh fffffjmnnnnnnnnythcgn hyStep-by-step explanation:

vvvv

6 and 9
18 and 15
3 and 9
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