Questions: If a person is randomly selected, find the probability that his or her birthday is not in May. Ignore leap years. A. 31/334 B. 334/365 C. 31/365 D. 11/12

If a person is randomly selected, find the probability that his or her birthday is not in May. Ignore leap years.
A. 31/334
B. 334/365
C. 31/365
D. 11/12

Transcript text: If a person is randomly selected, find the probability that his or her birthday is not in May. Ignore leap years. A. $\frac{31}{334}$ B. $\frac{334}{365}$ C. $\frac{31}{365}$ D. $\frac{11}{12}$

Solution

Solution Steps

Step 1: Total Days in a Year

The total number of days in a year, ignoring leap years, is given by: \[ \text{total\_days} = 365 \]

Step 2: Days in May

The number of days in the month of May is: \[ \text{days\_in\_may} = 31 \]

Step 3: Days Not in May

To find the number of days that are not in May, we subtract the days in May from the total days in the year: \[ \text{days\_not\_in\_may} = \text{total\_days} - \text{days\_in\_may} = 365 - 31 = 334 \]

Step 4: Probability Calculation

The probability that a randomly selected person's birthday is not in May is calculated as the ratio of the number of days not in May to the total number of days in the year: \[ \text{probability\_not\_in\_may} = \frac{\text{days\_not\_in\_may}}{\text{total\_days}} = \frac{334}{365} \approx 0.9151 \]