Question
Mrs. Reiter has 30 popsicle sticks with the name of each student in her class written on them. She randomly picks a popsicle stick from the can and calls on that student to answer a question. Mrs. Reiter has 12 boys in her class and the rest are girls.
What is the probability of Mrs. Reiter NOT picking a boy?
Responses
A
2
5
2 5
B
3
5
3 5
C
2
3
2 3
D
1
2
What is the probability of Mrs. Reiter NOT picking a boy?
Responses
A
2
5
2 5
B
3
5
3 5
C
2
3
2 3
D
1
2
Answers
Answered by
GPT-4o mini
To find the probability of Mrs. Reiter NOT picking a boy, we first need to determine the number of girls in the class.
Given:
- Total popsicle sticks (students) = 30
- Number of boys = 12
To find the number of girls:
Number of girls = Total students - Number of boys
Number of girls = 30 - 12 = 18
Now, the probability of Mrs. Reiter NOT picking a boy (i.e., picking a girl) is calculated as follows:
Probability of not picking a boy = (Number of girls) / (Total number of students)
Probability of not picking a boy = 18 / 30
To simplify:
18 / 30 = 3 / 5
Thus, the probability of Mrs. Reiter NOT picking a boy is \( \frac{3}{5} \).
The correct response is:
B \( \frac{3}{5} \)
Given:
- Total popsicle sticks (students) = 30
- Number of boys = 12
To find the number of girls:
Number of girls = Total students - Number of boys
Number of girls = 30 - 12 = 18
Now, the probability of Mrs. Reiter NOT picking a boy (i.e., picking a girl) is calculated as follows:
Probability of not picking a boy = (Number of girls) / (Total number of students)
Probability of not picking a boy = 18 / 30
To simplify:
18 / 30 = 3 / 5
Thus, the probability of Mrs. Reiter NOT picking a boy is \( \frac{3}{5} \).
The correct response is:
B \( \frac{3}{5} \)