Question

In a math class of 35 students, 17 boys and 18 are girls. On a unit test, 8 boys and 12 girls made an A grade. A student is chosen at random from the class. What is the probability of choosing a boy or an A student?

Group of answer choices

0.57

0.71

0.83

0.09

Answer 1

.83

Explanation:

In order to find the probability that either a boy or an A student is chosen, you must first identify how many boys and A students there are altogether in the class:

9 boys who are not A students + 8 boys who are A students + 12 girls who are A students = 29 students are either boys or A students

Now, you just need to turn this into a probability:

1: 29/35 (given)

2: ≈82.86/100 (multiply both the numerator and denominator by 100/35)

3: ≈83% or .83 (round to the ones place and turn into a decimal)