# Binomial probability: left-handed people

1) Thirteen percent of people are left handed. You randomly select 8 persons and ask if they are left-handed. Find the probability that (a) exactly 6 persons are left handed, (b0 at least 6 persons are left handed, (c) less than 6 are left handed.

a) P(exactly 6 of 8 are left handed) Round to four decimal places.

b) P(at least 6 of 8 are left handed) Round to four decimal places.

c) P(less than 6 of 8 are left handed) Round to four decimal places.

__________________________________________________________

2) Suppose that twenty eight percent of women consider themselves hockey fans. You randomly select 9 of the population and ask each if they are hockey fans. Construct a binomial distribution and use the distribution to find the mean, variance, and standard deviation of the binomial.

Mean= (Round to the nearest hundredth.)

Variance= (round to four decimal places)

St/Dv= Round to four decimal places.

#### Solution Summary

The solution uses binomial probability to determine a probability for number of people that are left handed.