8 out of 20 students in a class wear glasses what is the random possibility that a student selected at random does not wear glasses?
12 of 20 do not wear glasses, so ...
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To find the probability that a student selected at random does not wear glasses, we need to calculate the ratio of students who do not wear glasses to the total number of students.
Given that there are 20 students in the class and 8 of them wear glasses, we can calculate the number of students who do not wear glasses by subtracting 8 from the total number of students:
Number of students who do not wear glasses = Total number of students - Number of students who wear glasses
= 20 - 8
= 12
Therefore, there are 12 students who do not wear glasses.
To find the probability, divide the number of students who do not wear glasses by the total number of students:
Probability of a student not wearing glasses = Number of students who do not wear glasses / Total number of students
= 12 / 20
= 0.6 or 60%
Therefore, the random possibility that a student selected at random does not wear glasses is 0.6 or 60%.
To find the random probability that a student selected at random does not wear glasses, we need to determine the number of students who do not wear glasses and divide it by the total number of students in the class.
Given that 8 out of 20 students wear glasses, we can calculate the number of students who do not wear glasses by subtracting the number of students who wear glasses from the total number of students:
Number of students who do not wear glasses = Total number of students - Number of students who wear glasses
Number of students who do not wear glasses = 20 - 8
Number of students who do not wear glasses = 12
Now, the random probability that a student selected at random does not wear glasses is the ratio of the number of students who do not wear glasses to the total number of students:
Random probability = Number of students who do not wear glasses / Total number of students
Random probability = 12 / 20
Random probability = 0.6
Therefore, the random probability that a student selected at random does not wear glasses is 0.6 or 60%.