Question

Based on the data in this two-way table, if a girl is randomly selected, what is the probability that she will have above-average grades?

Gender/Grade Below Average Above Average Total
Boy 14 23 37
Girl 16 22 38
Total 30 45 75

Answer 1

if u have 45 of 75, what percent is that

Answer 2

60%

Answer 3

so 22 of 45n is...

Answer 4

wait

Answer 5

easier, 22 of 75

Answer 6

what is 22/75

Answer 7

29%

Answer 8

@yobankboo

"if a girl is randomly selected, what is the probability that she will have above-average grades?"

since we have already selected a girl, our probability will be calculated out of the # of girls only

"the probability that she will have above-average grades" ---> so we only want the girls who have above-average grades

therefore, simply calculate

(number of girls who have above-average grades) / (total # of girls)

using the values from the table