Question

In Miss Turner's third grade class, 54% of her students are girls, 13% are left-handed, and 4% are left-handed girls. If Miss Turner randomly calls on one of her students, determine the probability she calls on a right-handed boy. Express probability as a percentage rounded to two decimal places, ie.: 0.1885 to 18.85%.

Answer 1

To find the probability of Miss Turner calling on a right-handed boy, subtract the percentage of left-handed students from the percentage of boys. The probability is 33%.

Step-by-step explanation:

To find the probability that Miss Turner calls on a right-handed boy, we need to first determine the percentage of right-handed boys in her class.

Since we know that 54% of her students are girls, then 46% must be boys.

We also know that 13% of the students are left-handed, and 4% are left-handed girls.

Therefore, the percentage of right-handed girls is 54% - 4% = 50%, and the percentage of right-handed boys is 46% - 13% = 33%.

Therefore, the probability that Miss Turner randomly calls on a right-handed boy is 33%.

Answer 2

The probability of Miss Turner calling on a right-handed boy is approximately 37.00%.

Step-by-step explanation:

We can calculate the probability by considering the proportions of different student groups:

Girls: 54%

Left-handed: 13%

Left-handed girls: 4%

To find the percentage of right-handed boys, we subtract the percentage of all other student groups from 100%:

Right-handed boys = 100% - Girls% - Left-handed% + Left-handed girls%

Right-handed boys = 100% - 54% - 13% + 4%

Right-handed boys = 37%

Therefore, the probability of Miss Turner calling on a right-handed boy is approximately 37.00%.