Theory question 105
ProbabilityThe probabilities that Ago, Sulley and Musa will gain admission to a certain university are 4/5, 3/4 and 2/3, respectively. Find the probability that: (a) none of them will gain admission; (b) only Ago and Sulley will gain admission.
Show the model answer
Model answer
(a) (1/5)(1/4)(1/3) = 1/60.
(b) (4/5)(3/4)(1/3) = 1/5.
Explanation
Multiply the probabilities of independent events.