Bill's rare coin collection consists of 5 quarters and 4 dimes. He plans to sell 5 of these coins . If he selects the coins at random, what is the probability that he will select 2 quarters and 3 dimes?

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

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

69.64%

step-by-step explanation: