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, first we need to determine the total number of students in Mrs. Baker's class and the number of eighth grade students.
Let's assume there are 30 students in total in Mrs. Baker's class, with 10 of them being eighth graders.
The probability of selecting an eighth grade student would be 10/30 = 1/3.
Therefore, the probability of NOT selecting an eighth grade student would be 1 - 1/3 = 2/3.
To convert this into a percentage, we divide the numerator by the denominator and then multiply by 100:
2/3 * 100 = 66.67%
So, the probability that an eighth grade student will NOT be selected is 66.67%.