The shirt Ben wants to buy costs $20 but he has a coupon for 40% off. What is the final price of the shirt?

$12

Step-by-step explanation:

becuase 10%=2$

so 40%=$8

and 20-8=12

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

i think asking google will you get the answer to that question