Question

10% pins are defective, if 10 pins are selected at random calculate the probability that exactly 3 are defective?

Answer 1

This would be a binomial process

We would count a "success" as a pin being defective

n = 10
p = 0.1
x = 3

So if we have a calculator *if not let me know* we could always just use the "binompdf" function

\[\large binompdf(10,0.1,3)\]

Answer 2

i have my final ppr on friday , i need help in studying statistics please help me out.

Answer 3

this qusetion has 3 parts ?
1, exactly 3 are defective
2, more than 3 are defective
3, less than mean number are defective ?