QUESTION 1

According to astudy, brain weights of men in country A are normally distributed with mean 1.491.49kg and standard deviation 0.150.15kg. Apply the empirical rule to complete each sentence. Complete parts(a) through(d).

a. Complete the sentence"Approximately68%of the men have brain weights between_____ kg and_____ kg."

b. Complete the sentence"Approximately 95% of the men have brain weights between_____ kg and_____ kg." c. Complete the sentence"Approximately 99.7% of the men have brain weights between_____ kg and_____ kg."

Question 2

A variable is normally distributed with mean 77 and standard deviation 22. a. Find the percentage of all possible values of the variable that lie between 66 and 1010. b. Find the percentage of all possible values of the variable that exceed 55. c. Find the percentage of all possible values of the variable that are less than 33.