Question

The chance that a person is left handed is 0.15 or 15%. if you randomly select 8 people, what is the probability that they are all right handed?

Answer 1

Answer: The probability that all 8 people are right handed is about 27.25%.

If the chance a person is left handed, the chance a person is right handed is 85%.

Now, we just need to find the chance that this 85% event happens 8 times in a row.

Simply, multiply it by itself 8 times.

(0.85)^8 = 0.2725

There is a 27.25% chance all 8 people are right handed.