Fourteen percent of the town's population are above the age of 65 . if there are 320 residents over the age of 65, approximately what is the town's population

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

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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