Question

If a person is randomly selected, find the probability that his or her birthday is not in May. Ignore leap years.

1) 0.917
2) 0.083
3) 0.273
4) 0.727

Answer 1

The probability that a person's birthday is not in May is approximately calculated by dividing the number of days not in May (334) by the total number of days in a year (365), resulting in 0.9148. Option 1) 0.917 is the closest to this calculated probability.

Step-by-step explanation:

If we want to find the probability that a person's birthday is not in May, we first need to consider how many days there are in a year excluding leap years and then calculate the number of days that are not in May. There are 365 days in a year, and May has 31 days. Hence, there are 365 - 31 = 334 days that are not in May.

The probability that a randomly selected person's birthday is not in May can then be calculated by dividing the number of days that are not in May by the total number of days in a year. Using the formula for probability, which is P(A) = Number of favorable outcomes / Total number of possible outcomes:

P(birthday not in May) = 334/365 ≈ 0.9148

Looking at the options provided in the question, the closest to our calculated probability is option 1) 0.917.