Question

Arlene is testing whether school is more enjoyable when students are making high grades. She asked 100 students if they enjoyed school and whether their GPA was above or below 3.0. She found that 30 of the 40 students with a GPA above 3.0 reported that they enjoyed school, and 15 of the 60 students with a GPA below 3.0 reported that they enjoyed school. What is the probability that a student with a GPA below 3.0 does not enjoy school?

Answer 1

@ranga @kropot72

Answer 2

@Calliope @Callisto

Answer 3

@campbell_st

Answer 4

15%
25%
45%
75%

Is it D? @ranga

Answer 5

Yes.

Answer 6

"15 of the 60 students with a GPA below 3.0 reported that they enjoyed school."
15/60 = 25% of the students below 3.0 GPA reported that they enjoyed school.
Therefore, 75% of the students below 3.0 GPA did not enjoy school.