Question

If an event an occur once out of 20 times, its probability value is

a. .2
b. .8
c. .95
d. .05

Answer 1

The probability of an event occurring once out of 20 times is 0.05.

Step-by-step explanation:

If an event can occur once out of 20 times, the probability of the event is calculated as the number of successful outcomes over the total number of possible outcomes. In this case, it is 1 success out of 20 possible outcomes. Therefore, the probability value is 1/20, which when converted to decimal form is 0.05.

The correct answer is:

d. .05