Giving a test to a group of students, the grades and gender are
summarized below
A | B | C | Total | |
Male | 20 | 5 | 19 | 44 |
Female | 2 | 18 | 8 | 28 |
Total | 22 | 23 | 27 | 72 |
If one student is chosen at random,
Find the probability that the student did NOT get an "A"
From given table,
The probability that the student did NOT get an "A" is ,
= 1 - P(A)
= 1 - 22 / 72
= 0.6944
Probability = 0.6944
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