Question
Mrs. Baker’s students write word problems each week, and she selects one student's word problem to display on a bulletin board each week. Each student's name is placed in a bag from which Mrs. Baker draws a name. What is the probability that an eighth grade student will NOT be selected?
EXPLAIN your process and give your answer as a % or simplified fraction.
To find the probability that an eighth grade student will NOT be selected, we first need to know how many students are in the class and how many of them are eighth graders. Let's assume there are a total of 30 students in the class, with 10 of them being eighth graders.
The probability of selecting an eighth grade student is the number of eighth graders divided by the total number of students: 10/30 = 1/3.
Therefore, the probability of NOT selecting an eighth grade student is 1 - 1/3 = 2/3 or 66.67%.
So, the probability that an eighth grade student will NOT be selected to have their word problem displayed on the bulletin board is 66.67%.