The total number of students in Room C is 7 (7th graders) + 9 (8th graders) = 16.
The probability that the winner is a 7th grader in Room C is the number of 7th graders in Room C divided by the total number of students in Room C.
Probability = 7/16 = 0.4375 or 43.75%
Therefore, the probability that the winner is a 7th grader in Room C is 43.75%.
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. Table" Homeroom A has 8 7th graders and 9 8th graders Homeroom B has 10 7th graders 10 8th graders Homeroom c has 7 7th graders
9 8th graders
what is the probability the winner is a 7th grader in room C
1 answer
1 answer