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?
A) 19%
B) 38%
C) 43%
D) 96%

Answer 1

The answer to your question is: B

Answer 2

Event teenagers with a laptop A = 67%
event teenagers with both devices B = 29%
event teenagers with tablet C =?.

P(C|A) = B/A
= 29/67
= 0.43 probability which means 43 percent