If np5 and nq 5 estimate Pmore than 8 with n 13 and p 07

If np>5 and nq > 5, estimate P(more than 8) with n = 13 and p = 0.7 by using the normal distribution as an approximation to the binomial distribution: if np

Solution

Here,

n p = 13*0.7 = 9.1 > 5

n q = 13*0.3 = 3.9 < 5

As n q < 5, then

OPTION B: THE NORMAL DISTRIBUTION CANNOT BE USED. [ANSWER, B]