I'm not great at probability and statistics ...

The probability that a dessert sold at a certain cafe contains chocolate is 74%. The probability that a dessert contains both chocolate and nuts is 24%. Find the probability that a randomly chosen chocolate dessert contains nuts.

a) 17.8

b) 32.4

c) 31.4

d) 50

Let the probability that dessert contains chocolate be P (C) = 0.74, let the probability that dessert contains nuts be P (N) and let the probability that dessert contains both be: P (N and P) = 0.24

thus, the probability that randomly chosen chocolate dessert contains nuts will be given by:

P (NIP) = [P (N and C) ]/P (C)

plugging in the values we obtain:

P (NIP) = 0.24/0.74=0.324=32.4%

Answer: B]32.4