Atechnician is launching fireworks near the end of a show. of the 14 remaining fireworks, nineare blue and five are red. if she launches six of them in a random order, what is the probability that exactly 4 of them are blue ones?

0.3268

Step-by-step explanation:

Given : The number of fireworks are blue = 9

Total remaining = 14

Probability of choosing blue ones

Using binomial probability formula ,

, where p is the probability of success in each trial, n is sample size.

If she launches six of them in a random order then n=6.

The probability that exactly 4 of them are blue ones will be :-

Hence, the required probability = 0.3268

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base