It takes 63 minutes for 4 people to paint 9 walls how many does it take 7 people to paint 4 walls

i think it is 9 mintues per wall. I divided minutes per wall

i think it is 9 minutes per wall. I divided minutes per wall

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

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice