If a student is selected at random from a group of 20 students, 8 of whom are girls, what is the probability that the selected student is a boy?
Practice Questions
1 question
Q1
If a student is selected at random from a group of 20 students, 8 of whom are girls, what is the probability that the selected student is a boy?
1/2
3/5
2/5
1/5
There are 20 - 8 = 12 boys in the group. The probability of selecting a boy is the number of boys divided by the total number of students, which is 12/20 = 3/5.
Questions & Step-by-step Solutions
1 item
Q
Q: If a student is selected at random from a group of 20 students, 8 of whom are girls, what is the probability that the selected student is a boy?
Solution: There are 20 - 8 = 12 boys in the group. The probability of selecting a boy is the number of boys divided by the total number of students, which is 12/20 = 3/5.
