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4vir4ik [10]
3 years ago
10

In a class of 28 students, 12 earned an A on the final exam, 6 earned a B, 4 earned a C, and the remaining students failed. Base

d on these results, what is the experimental probability that a student will not earn an A or a B?
Mathematics
1 answer:
Sedaia [141]3 years ago
6 0

Answer:

  5/14 ≈ 35.7%

Step-by-step explanation:

(12 +6) = 18 of the 28 students earned an A or a B. So, the experimental probability that a student did not earn that grade is ...

  p(<B) = (28 -18)/28 = 10/28

  p(<B) = 5/14 ≈ 35.7%

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