The price of an item has been reduced by 45% . the original price was 75% .

$41.25

Step-by-step explanation:

If the original price was $75 and we reduce it by 45% then we would pay 55% of the price. We know this because 100%-45%=55%. I find the price by multiplying the original price by the percent I pay as a decimal. 55%=0.55. This would be 0.55(75)=$41.25.

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

boxplot e is the answer