Question

. Explain what it means to say that a variable (e.g. height) is normally distributed. What...

. Explain what it means to say that a variable (e.g. height) is normally distributed. What 3 claims can you make about the variable?

0 0
Add a comment Improve this question Transcribed image text
Answer #1

From the given

Variable is normally distributed means population distribution of the variable is normal.

The histogram of the variable shows bell shaped pattern.

The pattern of the distribution is symmetric about mean.

3 claims about normal random variable

- shape of distribution of random variable is bell shaped.

-mean =Median =mode

-distribution is symmetric about mean.

Add a comment
Know the answer?
Add Answer to:
. Explain what it means to say that a variable (e.g. height) is normally distributed. What...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Find a statistic that is expected to be normally distributed (e.g. height of adult men). Sample...

    Find a statistic that is expected to be normally distributed (e.g. height of adult men). Sample 30 people regarding their value related to this statistic (e.g. ask them “How tall are you?”) and record your results. Sampling 30 people is not optional. You must have at least 30 values of the statistic you choose. Use StatCrunch to create a histogram of your results. Post the question you asked and the histogram you created. Are your results normally distributed? Why or...

  • Question 3. (a) In 100 words or less, explain what it means to say that a...

    Question 3. (a) In 100 words or less, explain what it means to say that a force is "conservative". [1 Mark] (b) Under what conditions can we say that a given system conserves momentum? [1 Mark] (c) Blocks, A and B are shown below; 1.5m Im B Block A is released from rest on a curved ramp at a vertical height of 1.5m relative to B. Block A has a mass of 8kg, Block B has a mass of 15kg...

  • 1. The heights of kindergarten children are approximately normally distributed with a mean height of 39...

    1. The heights of kindergarten children are approximately normally distributed with a mean height of 39 inches and a standard deviation of 2 inches. A classroom of 20 of these children is used as a sample. What is the probability that the average height , for the class is greater than 40 inches? Illustrate with a graph. ANSWER: 0.0127 2. The heights of kindergarten children are approximately normally distributed with a mean height of 39 inches and a standard deviation...

  • The height of women ages​ 20-29 is normally​ distributed, with a mean of 64.4 inches. Assume...

    The height of women ages​ 20-29 is normally​ distributed, with a mean of 64.4 inches. Assume σ=2.4 inches. Are you more likely to randomly select 1 woman with a height less than 66.5 inches or are you more likely to select a sample of 15 women with a mean height less than 66.5 ​inches? Explain. (a) What is the probability of randomly selecting 1 woman with a height less than 66.5 ​inches?

  • 19. Assume that the sample means of samples of size 10 are normally distributed. a. What...

    19. Assume that the sample means of samples of size 10 are normally distributed. a. What is the mean of all sample means of samples of size 10? b. What is the standard deviation of all sample means of samples of size 10? c. What is the probability that the sample of 10 sea urchins has a mean weight between 50 and 55 grams?

  • The height of a Basketball Player is approximately normally distributed with a mean height of 73...

    The height of a Basketball Player is approximately normally distributed with a mean height of 73 inches and a variance of 9 inches^2. What is the approximate probability that a player's height is between 72 and 75 inches? a).3779 b).7586 c).3779 d).6221

  • Let z be a normal random variable with mean 0 and standard deviation 1. What is...

    Let z be a normal random variable with mean 0 and standard deviation 1. What is P(z > -1.1)? -0.8643 0.8643 -0.1357 0.1357 If all possible random samples of size n are taken from a population that is not normally distributed, and the mean of each sample is determined, what can you say about the sampling distribution of sample means? It is approximately normal provided that n is large enough. It is positively skewed. It is negatively skewed. None of...

  • Problem 1 (16 points). Suppose that Y is normally distributed random variable with u-10 and σ-2...

    Problem 1 (16 points). Suppose that Y is normally distributed random variable with u-10 and σ-2 and X is another normally distributed random variable with μ-: 5 and σ-5. Y and X are independent. Calculate the following probabilities according to a normal distribution table (e.g., a normal table found from the Internet) (1) (4 points) Pr(Y> 12) (2) (4 points) Pr(2 < X <4) (3) (4 points) Pr(Y> 12 and 2< X <4) and Pr(Y> 12 or 2< X <4)...

  • The height of adult males is normally distributed with a mean of 172 cm and a...

    The height of adult males is normally distributed with a mean of 172 cm and a standard deviation of 8 cm. If your height is at the 40th percentile, what is your height?

  • L.11) Brand name distributions a) Give an example of a normally distributed random variable. b) Give...

    L.11) Brand name distributions a) Give an example of a normally distributed random variable. b) Give an example of an exponentially distributed random variable. c) Give an example of a random variable with the Weibull distribution. d) Give an example of a random variable with the Pareto distribution. L.4) Sample means from BinomialDist[1, p] IfXl. X2. X3, Xn are independent random samples from a random variable with the BinomialDist[1, p] distribution, then what normal cumulative distribution function do you use...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT