Assume that X, the starting salary offer for anthropology majors, is normally distributed with a mean of $39,269 and a standard deviation of $2,550. Use the Distributions tool to answer the questions.

a. The probability that a random selected anthropology major received a starting salary offer less than $38,000 is: ?
b. The probability that a randomly selected anthropology major received a starting salary offer between $38,000 and $41,950 is: ?
c. What percentage of anthropology majors received a starting offer between $32,000 and $38,000?

i. 99.06%
ii. 69.37%
iii. 30.64%
iv. 0.94%

d. Twenty percent of anthropology majors were offered a starting salary less than ?

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution