so prob that 5 of the 10 smoke
= C(10,5)(.4^5)(.6^5)
= appr .2
40% of college students smoke ???
Are those stats from the 50's ?
Suppose that 40% of all college students smoke cigarettes. A sample of 10 is selected randomly. What is the probability tha t
a half of the students smoke?
1 answer
1 answer