If the probability of rain today is 23%, what are the odds against rain today?
A)23 : 77
B)77 : 23
C)26 : 81
D)25 : 81
E)none of these choices

Question

If the probability of rain today is 23%, what are the odds against rain today? ​
A)23 : 77
B)77 : 23
C)26 : 81
D)25 : 81
E)none of these choices

Quizplus · Accepted Answer

To find the odds against an event, we use the formula:
Odds against = (1 - probability of the event) : probability of the event
In this case, the probability of rain is 23%, so the probability of no rain is 77% (100% - 23%). Substituting into the formula, we get:
Odds against rain = (1 - 0.23) : 0.23 = 0.77 : 0.23 = 77 : 23
Therefore, the answer is B.

If the Probability of Rain Today Is 23%, What Are