Math 225N Week 5 Assignment Understanding Normal Distribution

Math 225N Week 5 Assignment Understanding Normal Distribution

Question

Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers.

Correct answer:

Question

Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers.

Question

Lexie averages 149 points per bowling game with a standard deviation of 14 points. Suppose Lexie’s points per bowling game are normally distributed. Let X= the number of points per bowling game. Then X∼N(149,14).

Suppose Lexie scores 186 points in the game on Tuesday. The z-score when x = 186 is….The mean is…..

This z-score tells you that x = 186 is ……standard deviations to the right of the mean.

Question

Suppose X∼N(12.5,1.5), and x=11. Find and interpret the z-score of the standardized normal random variable.

Question

Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers.

Question

Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers.

Question

Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers.

Question

Rosetta averages 148 points per bowling game with a standard deviation of 14 points. Suppose Rosetta’s points per bowling game are normally distributed. Let X= the number of points per bowling game. Then X∼N(148,14).

The z-score can be found using this formula:

Question

Suppose X∼N(16.5,0.5), and x=16. Find and interpret the z-score of the standardized normal random variable.

Question

John averages 58 words per minute on a typing test with a standard deviation of 11 words per minute. Suppose John’s words per minute on a typing test are normally distributed. Let X= the number of words per minute on a typing test. Then X∼N(58,11).

The z-score can be found using this formula:

Do you need high quality Custom Essay Writing Services?

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.Ok