Question

the data show the favorite subjects of a random sample of students. what is the probability that a randomly selected 10th grade student at the school favors english?

	math	science	english
11th grade	6	2	12
12th grade	2	3	5

Explanation:

Step1: Find total 10th - grade students

Add the number of 10th - grade students who favor each subject. $12 + 5+3=20$

Step2: Find number of 10th - grade students who favor English

The number of 10th - grade students who favor English is 3.

Step3: Calculate the probability

Probability = $\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. So the probability that a randomly - selected 10th - grade student favors English is $\frac{3}{20}$.
To convert to percentage, multiply by 100: $\frac{3}{20}\times100 = 15$

Answer:

15