The mean and standard deviation of a population are 200 and 20, respectively. What is the probability of selecting 25 data values with a mean less than 190?

A. 69%
B. 31%
C. 0.6%
D. 99%

Answers

Answer 1

The probability of selecting 25 data values with a mean less than 190 is 0.6%.

What is probability?

This topic is concerning on numerical descriptions of how likely an event is to occur.

Given data

Population mean = 20

Standard deviation = 20

Sample size= 25

Sample mean= 190

z = 190-200/20/5

Square root of 25 -10/4 = 2.

Corresponding term is 0.4938 P(X<190) = 0.500-0.4938

P(X<190) = 0.0062 or 0.62

P(X<190) = 0.6%

Therefore, the Option C is correct.

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Related Questions

Who was gilgamesh, the hero of ancient mesopotamian mythology?.

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In ancient Mesopotamian mythology, Gilgamesh was a brave and over-confident Sumerian king of Uruk. He was 2/3 god and 1/3 man.

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Explanation:

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individual-level mental processes

Which Pacific South American country was faced with attacks from a terroris
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Answers

Answer:

A:Peru

Explanation:

LIMA, Peru — Abimael Guzmán, the leader of the brutal Shining Path insurgency in Peru who was captured in 1992, died on Saturday in a military hospital after an illness, the Peruvian government said.

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A. 0.3
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Answers

Answer:

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Explanation:

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A social work researcher has decided to do a study of people who have adopted children from outside the United States. He asks a friend, whom he knows to have recently adopted and asks if he would consent to an interview. He interviews his friend and then asks his friend if he could name other people who have recently adopted children from outside of the United States. His friend provides him with five names. The researcher contacts those five people, interviews them, and asks each of those people for names of other families. This sampling technique is known as:

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The sampling technique used by the social work researcher is known as a snowball sampling.

What is a snowball sampling?

Also known as chain sampling, its refers to a nonprobability sampling technique that is used when existing study subjects recruit subjects from among their acquaintances.

Hence, as the group is growing like a rolling snowball, the sampling technique used by the social work researcher is known as a snowball sampling.

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WHOEVER RESPONDS FIRST WILL BE MARKED BEST.
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Bill Clinton won the presidency in 1992 partly because of he focused on the economy and how he was as going to improve it.

Who is Bill Clinton?

It should be noted that Bill Clinton was an American politician who served as the 42nd president of the United States.

In this case, Bill Clinton won the presidency in 1992 partly because of he focussed on the economy and how he was as going to improve it.

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Answers

Sigmund Freud was responsible for creating the three components of personality in this scenario.

Freud's personality component

The three components include the following:

IdEgoSuperego

Freud discovered through different observations that communication and conflicts are among the components mentioned above which create personality which is why option B was chosen.

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Answer:

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Explanation:

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It is false that a mood disorder is characterized by an inability to recall important information, usually traumatic or stressful in nature, that is too extensive to be normal forgetfulness.

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Causes of mood are :

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Hence, It is false that a mood disorder is characterized by an inability to recall important information, usually traumatic or stressful in nature, that is too extensive to be normal forgetfulness.

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Answer:

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The four main objectives of U.S. foreign policy are the protection of the United States and its citizens and allies, the assurance of continuing access to international resources and markets, the preservation of a balance of power in the world, and the protection of human rights and democracy.

Answer:

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What is good for cleaning your vessel and does not harm lakes or rivers is:  non-phosphate products .

How to clean your vessel

In order to effectively and appropriately clean your vessel and to avoid causing any harmful product or chemical to flow into the lakes or rivers is to make use of the following:

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Answer:

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Explanation:

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Answer:

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Explanation:

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Answer:

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Answer:

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Answer:

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Answer:

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We will point out the following when demonstrating 2023 leaf’s quiet ride:

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This is a vehicle features that allows for a quiet and seamless sound from the engine while running.

Therefore, the advanced aerodynamic body, advanced sound-absorbing materials and 110 kW or 160 kW AC synchronous motor will be demonstarted.

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Answer:

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In the context of online dating a national study of more than 19,000 individuals by Cacioppo and others (2013) found that :___________a) marriages that began online were slightly more likely to break up than those that started in traditional offline contexts b) women lied online most about their height, income, and age. c) less than one-third of marriages began online d) marriages that began online were characterized by slightly higher marital satisfaction than those that started in traditional offline contexts

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A national study found that marriages that began online were characterized by slightly higher marital satisfaction than those that started in traditional offline contexts.

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Do you think getting a loan is easy? why or why not?

Answers

Answer:

Explanation:

Answer

It depends.

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It is also called the research paradigm.

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Answers

I believe the answer would be A.

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Answers

The mean of the sampling distribution of the sample means according to the Central Limit Theorem is exactly equal to the population mean

What is Central Limit Theorem?

Central Limit Theorem explains when as the size of a sample keep increasing the mean with become Normal in the distribution curve.

The sample become normal as the population mean becomes equal.

Therefore, The mean of the sampling distribution of the sample means according to the Central Limit Theorem is exactly equal to the population mean.

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why are traditional belief important for the protection of forest​

Answers

Answer:

The traditional beliefs and taboos helped in enforcing rules and regulations for environmental preservation because people refrained from using resources carelessly, especially as it is related to sacred places.

Explanation:

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