# Question: A What is the total measure of the area for

a. What is the total measure of the area for any probability distribution?

b. Justify the statement “ becomes less variable as n increases.”

b. Justify the statement “ becomes less variable as n increases.”

**View Solution:**## Answer to relevant Questions

a. What numerical statistics would you use to describe the “ages” sample data in Exercise 7.1? Calculate those statistics. According to the 2000 census (2010 census is not complete), 275 million Americans have a mean age ...According to The World Factbook, 2009, the total fertility rate (estimated mean number of children born per woman) for Uganda is 6.77. Suppose that the standard deviation of the total fertility rate is 2.6. The mean number ...What is the probability that the sample of kindergarten children in Example 7. 6 has a mean height of less than 39.75 inches? Refer to Table 7. 1 in Example7. 1 (p. 314) and explain why the samples are equally likely; that is, why P(0) = 0.04 and why P(2) = 0.12 a. Calculate the z-score for an x of 21.5. b. Calculate the z-score for an of 21.5 from a sample of size 25. c. Explain how 21.5 can have such different z-scores.Post your question