the amount of sleep that elementary school children get per night follows a normal distribution with a mean of 9.5 hours and a standard deviation of 0.55 hours. Find the proportion of students who get between 9 an 10 hours of sleep per night. Sketch the normal curve and shade under the area the curve that is the answer to the question

Answers

Answer 1

According to the normal distribution parameters, the likelihood of a student getting at least 12 hours of sleep is 0. As a result, it is unusual.

Given the following parameters:

Mean = 9.5Standard deviation = 0.55

The probability of getting at least 12 hours of sleep can be expressed using the Zscore formula as follows:

Zscore = (Score - Mean) / standard deviation

For X ≥ 12 :

Z = (12 - 9.5) / 0.55 = 4.545

The probability using a normal distribution table :

P(Z ≥ 4.54) = 1 - P(Z ≤ 4.54)

P(Z ≤ 4.54) = 1 ( normal distribution table)

P(Z ≥ 4.54) = 1 - 1 = 0

Because the probability is zero, it is unlikely and thus abnormal.

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Related Questions

A family of 11 members went for a picnic at a park. There they saw a long straight bench that could
accommodate all of them so they decided to sit on it. Now, the two youngest members of the family had an
argument the previous day so they refused to sit together.
What is the probability that out of all seating arrangements that are possible, one arrangement is picked
such that the two youngest members don't sit together?

Answers

Probability tells us how often some event will happen after many repeated trials. This topic covers theoretical, experimental, compound probability

What is the likelihood that one seating arrangement will be chosen out of all possible seating arrangements?

Make all possible arrangements for 12/78 or 2/13, with the two youngest members being 1 and 2.

Then 1 will form a pair with 3,4,5,6,7,8,9,10,11,12,13 = 12 pairs, but 1 will not form a pair with 2 according to the question.

2 pairs = 3,4,5,6,7,8,9,10,11,12,13 = 11 pairs

Then 3 will make 4,5,6,7,8,9,10,11,12,13 = 10 pairs, not 1 and 2 as they did previously.

Then 4 becomes 5,6,7,8, and so on.

Then you make pairs with all of the numbers.

As a result, total pairs formed with 1 = 12, 2 = 11, 3 = 10, and so on until 78 pairs were formed.

12 people in total are seated together.

12/78 = 2/13

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Is rule a component of morality?​

Answers

The rule is not a component of morality.

What is morality?

Morality consists of the urge or predisposition to judge human actions as either right or wrong in terms of their consequences for other human beings.

What is the main purpose of morality?

It is to reduce social tensions and thereby enable society to smoothly and efficiently ensure the well-being of its members.

What are the components of morality?

Cognitive: Distinguish right from wrong.Behavioural: Act accordingly.Affective: Feel pride and guilt or shame.

Thus, the rule is not a component of morality.

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Consider the random experiment where the numbers 1 - 25 are written on separate tickets and placed in a jar and 1 ticket is drawn from the jar. Find the probability.
P(not divisible by 5)

Answers

Answer:

22

Explanation:

help with bank reconciliation?

Answers

Answer:

Get bank records.

Explanation:

1) Clearly state your position on a controversial issue

2) Support your point of view by arguments (explain the reasons why you believe this)

3) Think of counter-arguments to your point of view (explain why would someone disagree with your point, how would they counter you)

4) Try to refute these counter-arguments (respond to your critics, try to prove them wrong)

Answers

The above prompt is clearly an argumentative essay. This means that you would need to use claims and counterclaims to demonstrate why your argument should be considered the one with the highest logical position.

The Controversy of Kaepernick  and Media Brainwashing

History, they say, repeats itself, but is it history if nothing changes? Colin Kaepernick, the quarterback of the San Francisco 49ers, stunned an American audience in 2016 when he decided to kneel during the national anthem at football games.

His acts were intended to protest tyranny and cruelty against African Americans and other minorities in the United States, causing outrage among those who supported him and those who did not.

Many Americans saw his kneeling during the anthem as disrespectful to the country, the flag, and the women and men who serve our country. In truth, this view of his conduct differs from his true aims, which were to draw attention to police brutality and racial injustice.

Before taking any protest action, Kaepernick met with US army veteran Nate Boyer, who advised him to kneel rather than sit on the bench since troops kneel when a fellow soldier is killed to show respect.

Kaepernick was only kneeling to express respect for the innocent victims of police violence. Our president, along with the majority of the American people, decided to turn this issue around and claim that

Kaepernick was disrespecting our flag. Instead of diving into societal concerns, public analysis rarely goes above the surface, a regrettable trend in modern media. Kaepernick lost his job and has been suspended from the NFL since 2016 for taking a stand for what he believed in.

Kaepernick was recently included in Nike's 30th-anniversary marketing campaign for their catchphrase "Just Do It." The commercial included a photo of him with the tagline "believe in something even if it means sacrificing everything."

This is clearly a highly positive/motivating message to Nike's fan base, but once again, the American public appears to have missed Kaepernick's simple message and misinterpreted it. Because of the uproar around Nike's support, people were filming themselves cutting, burning, and destroying their Nike apparel.

This is typical white supremacy: white America attempting to dominate society and devalue persons and concerns associated with races other than their own, particularly African Americans.

In general, I feel the issue surrounding Kaepernick stems only from white racism and white privilege. White America can not understand what it is like to live in a culture where their race has been oppressed, violated, attacked, and discriminated against for hundreds and hundreds of years.

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Why is it false to say that single-family mortgage foreclosures cause violent crimes to occur?

Answers

Because violent crime rates also climb in neighborhoods where single-family mortgage foreclosure rates are high.

Which four violent crime categories are there?

Violent crime is divided into four offenses under the FBI's Crime In the united states Reporting (UCR) Program: mur-der & nonnegligent homicide, forcible ra-pe, robbery, & aggravated battery.

What violent crime is the most prevalent?

Mur-der and nonnegligent homicide, ra-pe, burglary, and aggravated assault are the most common UCR violent offenses, following by burglary, grand theft, and theft of a moving vehicle.

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The probability that a person eats too much on Thanksgiving is 40%. The probability that a person takes a nap on Thanksgiving is 50%. The probability of both eating too much and taking a nap on Thanksgiving is 30%. If a person takes a nap, what is the probability that he ate too much?
0.20
0.3
0.50
0.06
0.60

Answers

Answer:

i would say 0.60

Explanation:

Use the excerpt from the Slater Trust Company’s Pawtucket, Past and Present; Being a Brief Account of the Beginning and Progress of Its Industries to answer the question.
This description suggests that the First Industrial Revolution in the Americas was
A. a consequence of American democratic reforms.
B. modeled on earlier practices used first in England.
C. at first the product of very poor investments.
D. encouraged by wealthy elites in New England.

Answers

This description suggests that the First Industrial Revolution in the Americas was modeled on earlier practices used first in England. Thus, option B is correct.

What is an Industrial Revolution?

Many new industries were created as a result of the industrial revolution, but these new industries required a large number of employees to fill these jobs and be paid for them.

As in this excerpt regarding the industries and it was suggested that how during the first industrial revolution America took major part of it from England.

As they were growing country at that time there were various thing that they learn. Due to this there various new industries which was set up at the production also increased.

Therefore, option B is the correct option.

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According to this description, prior techniques first employed in England may have served as the basis for the First Industrial Revolution in the Americas. So, choice B is the right one. The industrial revolution led to the creation of many new industries, but these new businesses needed a lot of workers to fill the jobs and be paid for them. According to this excerpt's discussion of the industries, America borrowed heavily from England during the first industrial revolution. They learned a variety of things at that time as their nation was developing. As a result, several new sectors were established, and production rose as well.

Why is it false to say that single-family mortgage foreclosures cause
violent crimes to occur?

Answers

Single family mortgage gives way to deviant behavior and help set the scene for neighborhoods in poor condition .

What is Single family mortgage?

A single-family mortgage is a loan secured by a residential property dwelling having at least one and no more than four separate units. A single-family mortgage borrower is typically the homeowner using the loan to purchase the residence.

Hence, Single family mortgage describes the whole situation.

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1. A requested task is subject to be reported when:
Requesting for a screenshot
When it is asking for 3 proofs
When it requests for email address to be submitted
When the link takes you to an external page requesting a different task other than what is listed in Microworkers

Answers

A requested task is subject to be reported when option D: When the link takes you to an external page requesting a different task other than what is listed in Microworkers.

What does a "microworker" do?

This is a unique, international internet network called Microworkers links employers and employees from all around the world.

Their  distinctive method assures Employers that a task paid is a task effectively completed, and ensures Workers that a job successfully completed receives payment.

Therefore, Note that redirecting people to other site is not acceptable on the microwork website and as such should be reported.

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