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 determine the total number of students in Mrs. Baker's class and the number of eighth grade students.
Let's say there are a total of 30 students in Mrs. Baker's class and 10 of them are in the eighth grade.
The probability of not selecting an eighth grade student can be calculated by dividing the number of students that are not in the eighth grade (20) by the total number of students (30).
Therefore, the probability is 20/30 = 2/3 = 0.6667.
So the probability that an eighth grade student will NOT be selected is 66.67%.