SOLUTION: There are 14 students in a class that has just completed an exam. The exam grades ranged from 55 to 100. If you choose 3 students from the class, what is the probability that the s
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Question 358096: There are 14 students in a class that has just completed an exam. The exam grades ranged from 55 to 100. If you choose 3 students from the class, what is the probability that the sum of their exam scores is less than 100? Answer by solver91311(24713) (Show Source):
Because of the given range, the lowest score attained was 55. Therefore the sum of three scores must be greater than or equal to 55 times 3 = 165 which is larger than 100. There are no combinations of three scores that would total less than 100, hence:
John
My calculator said it, I believe it, that settles it
