A company that makes hair-care products had 4,000 people try a new shampoo. Of the 4,000 people,8 had a mild allergic reaction. What percent of the people had a mild allergic reaction?

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

include a picture of the drawing in order for me to

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

step-by-step explanation:

what does 'mandy have ben 780 bottle caps. ' mean?