Question

Suppose 67% of all teenagers own a laptop and 29% of all teenagers own a laptop and a tablet. What is the probability that a teenager owns a tablet given that the teenager owns a laptop?

Answer 1

P(T | L) = P(T&L)/P(L)

P(T | L) = 0.29/0.67 = 29/67 ≈ 0.4328 ≈ 43.3%