Question

65 percent of homes in Canada were found to have computers. In a sample of 8 homes, what is the probability that 5 have computers?

Answer 1

Question #18936

65 percent of homes in Canada were found to have computers. In a sample of 8 homes, what is the probability that 5 have computers?

Answer:

$$P _ {8} (5) = C _ {8} ^ {5} \times p ^ {5} \times q ^ {3} = \frac {8 !}{5 ! 3 !} \times 0,65^ {5} \times 0,35^ {3} = 0,27858577 (27,86\%)$$

Probability = 27,86%