The pool balls are randomly chosen from a set of numbers from 1 to 15 what is the probability that the pool bars chosen a number 5, 7 and 9

Question

I need help please I don’t understand this.

Answer 1

First of all, your English grammar needs as much attention as your math! Please look at the question you have submitted which has spelling errors, no punctuation and an expression with no verb.

Secondly, the answer depends on whether the numbers are chosen with or without replacement.

If with replacement, then the probability is 3!/(15)³; if without replacement, then 3!/(15*14*13).