Question 1113615
mean = variance = 3.3
:
standard deviation = square root(3.3) = 1.8
:
P(X > 72) = 1 - P(X< or = 72) = 1 - summation i = 0 to 72 of P(i, 3.3)
:
P(X > 72) = 1 - 1 = 0
: