Approximately 10% of all people are left-handed. Consider a grouping of fifteen people. b.) Write the probability distribution.

Answer 1

The probability distribution is going to be a binomial distribution, since one can either be left or right handed. Since 10% of people are left handed and that's the demographic we are interested in, we are going to make the success probability the probability that we find a left handed person.

The binomial distribution is:

(n choose x)*.10^x*.90^n-x