Question

The probability distribution of a 3-coin toss is shown in the table.Number of heads. 0. 1. 2. 3Probability 1/8. 3/8. 3/8. 1/8What is the probability that the number of heads will be odd?A. 1/4B. 3/8C. 1/2D. 1/8

Answer 1

Looking at the table, the odd values are 1 and 3.

The probability for 1 head is 3/8 and the probability for 3 heads is 1/8.

Adding these probabilities, we have the probability of the number of heads being odd:

$P(odd)=P(1)+P(3)=3/8+1/8=4/8=1/2$

Therefore the correct option is C.