The mean salary of all female workers is $35,000. The mean salary of all male workers is $41,000. What must be true about the mean salary of all workers?

(a) It must be $38,000.

(b) It must be larger than the median salary.

(c) It could be any number between $35,000 and

$41,000.

(d) It must be larger than $38,000.

(e) It cannot be larger than $40,000.

In a statistics class with 136 students, the professor records how much money (in dollars) each student has in his or her possession during the first class of the semester. The histogram shows the data that were collected.

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Frequency 60 50 40 30 20 20 10 T T T T 0 0 10 20 30 40 50 60 70 80 90 100 110 Amount of money