according to an article on the Guardian website, a British woman in 2003 has probability 0.27 of living at least 100 years . suppose that you randomly select 200 women who were born in 2003 . will exactly 54 of them live at least 100 years?
Accepted Solution
A:
No. 0.27 is the mean calculated from past data. It can’t be used to make an exact prediction. Each woman has a probability of 0.27 of living beyond 100 years. For example, if 100 women are randomly selected the probability of exactly 27 of them living 100 or more years is ¹⁰⁰C₂₇0.27²⁷0.73⁷³=0.09, or about 9%.