Question

When Harry plays cards, the probability of his winning is 0.2, and the probability of a draw is 0.5. What is the probability of his losing?

A) 0.1
B) 0.2
C) 0.3
D) 0.4

Answer 1

The probability of Harry losing a card game is 0.3, as the sum of the probabilities for all outcomes must equal to 1. You can calculate it by subtracting the probabilities of winning and drawing from 1.

Step-by-step explanation:

When Harry plays cards, the total probability for all possible outcomes (win, draw, and lose) must add up to 1, which represents the certain event. Given that the probability of Harry winning is 0.2 and the probability of a draw is 0.5, the probability of losing can be found by subtracting these probabilities from 1. So:

Probability of Losing = 1 - (Probability of Winning + Probability of Draw)

Probability of Losing = 1 - (0.2 + 0.5)

Probability of Losing = 1 - 0.7

Probability of Losing = 0.3

Therefore, the probability of Harry losing is 0.3, which corresponds to option C).