Chapter 15: Probability

Q1. A die is thrown once. Find the probability of getting a number greater than 4.

Solution

Favorable outcomes: {5, 6} = 2
P = 2/6 = 1/3

Q2. A coin is tossed twice. Find the probability of getting at least one head.

Solution

Sample space: {HH, HT, TH, TT}
At least one head: {HH, HT, TH} = 3
P = 3/4