Question

If the probability of winning a game is 0.3, then what is the probability of losing it?
A) 0.1
B) 0.3
C) 0.7
D) 1.3

Answer 1

Note: In this question it is given that the probability of winning a game is 0.3, then we have to find the probability of losing this game. So to find the solution we need to know that if E be any event and p = probability of happening an event and q = probability of not happening an event, then p + q = 1.
Complete step-by-step solution:
In this question the event E = A game.
So, p = probably of winning a game = 0.3 and
q = probability of losing a game
Therefore,
$$p+q=1$$
$$\Rightarrow 0.3+q=1$$
$$\Rightarrow q=1-0.3$$
$$\Rightarrow q=0.7$$
Therefore, the probability of losing a game is 0.7.
Note: While solving probability related questions you need to know that the probability of an event is a number describing the chance that the event will happen, and if there is a chance that an event will happen, then its probability is between zero and 1. An event that is certain to happen has a probability of 1. An event that cannot possibly happen has a probability of zero.