1 point According to reports 154 of squirrels in a given fo

(1 point) According to reports, 15.4 % of squirrels in a given forest are rabid. Suppose that you randomly catch 85 squirrels and test them for rabies. Use a normal approximation to determine the following probabilities. a) What is the probability that at least 21 of them have rabies? b) What is the probability that no more than 1 of them have rabies?

Solution

p = 0.154

n =85

X no of squirrels which have rabid is binomial with (85, 0.154)

a) P(X>=21) =Binomial calculator for x>=21

=0.0170

b) P(x<=1)=1.1047x10^-5