Question:

A hundred samples of 5 resistors were taken from a large batch. 59 samples had no defective resistors, 33 had 1, 7 had 2, 1 had 3, and no samples had 4 or 5 defective resistors. Show that the distribution is approximately binomial and estimate the overall percentage of defective components.

I need some help in determining the variables p,q,n to solve this. Please correct me if I'm wrong:

q = possibility of no defect in a sample = 1/5

p = possibility of having defects in a sample = 4/5

n (times) = 100

ANSWER of overall percentage = about 10%