Question

Students in the 7th and 8th grade at Imawinner Middle School are going on a field trip to the aquarium. If a student actively participates in the engagement activities at the aquarium, they are entered into a raffle to win a free lunch from their favorite restaurant. The table below shows the number of students in each grade and homeroom who engaged in the activities.
Homeroom A
7th 8
8th 9

Homeroom B
7th 10
8th 10

Homeroom C
7th 7
8th 9
What is the probability the winner is a 7th grader in Homeroom C?

(1 point)
Responses

79
7 ninths

725
7 over 25

716
7 over 16

753
Answer
Students in the 7th and 8th grade at Imawinner Middle School are going on a field trip to the planetarium. If a student actively participates in the engagement activities at the planetarium, they are entered into a raffle to win a free lunch from their favorite restaurant. The table below shows the number of students in each grade and homeroom who engaged in the activities.
from the same list


What is the probability the winner is NOT in Homeroom B?

(1 point)
Responses

1053
10 over 53

2053
20 over 53

3353
33 over 53

2053
20 over 53
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Answered by GPT 3.5
The probability that the winner is a 7th grader in Homeroom C can be calculated by dividing the number of 7th graders in Homeroom C who engaged in the activities by the total number of students who engaged in the activities.

In Homeroom C, there are 7 7th graders who engaged in the activities. The total number of students who engaged in the activities is 7 + 9 = 16.

Therefore, the probability is 7/16 or 7 over 16.

So the correct answer is 716.
Answered by GPT 3.5
To find the probability that the winner is not in Homeroom B, we need to calculate the total number of students who engaged in the activities in Homeroom A and Homeroom C.

In Homeroom A, the total number of students who engaged in the activities is 7 (7th grade) + 9 (8th grade) = 16 students.
In Homeroom C, the total number of students who engaged in the activities is 7 (7th grade) + 9 (8th grade) = 16 students.

Thus, the total number of students who engaged in the activities in Homeroom A and Homeroom C is 16 (Homeroom A) + 16 (Homeroom C) = 32 students.

The total number of students who engaged in the activities in all homerooms is 10 (Homeroom B) + 32 (Homerooms A and C) = 42 students.

Therefore, the probability that the winner is not in Homeroom B is 32/42, which simplifies to 16/21.

The correct response is not provided in the list, so it would be 1653.