SOLUTION: a class of 45 students took an exam. there were 5 a's, 11 b's, 19 c's, 6 d's and the rest failed. if one student is selected at random, what is the probability that the students gr

Algebra ->  Probability-and-statistics -> SOLUTION: a class of 45 students took an exam. there were 5 a's, 11 b's, 19 c's, 6 d's and the rest failed. if one student is selected at random, what is the probability that the students gr      Log On

5 a's + 11 b's + 19 c's + 6 d's = 41 passing students,

Therefore there were 45-41 = 4 f's.



Edwin