A bookstore carries 10 magazines. 20% of the magazines are women's magazines. How many women's magazines does the bookstore carry?

2 magazines

Step-by-step explanation:

Thinking in terms of 20% of 100 being 20, this question is very similar, just take of the extra 0 on the end of 100, 20% of 10 would be 2 (the extra 0 gets taken off on the answer too).

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0