Question

The probabilities that a student will receive an A, B, C or D grade are 0.4, 0.3 , 0.2 and 0.1 respectively. Find the probability that a student will receive Atleast B grade.

A) 0.21 B) 0.3 C) 0.7 D) None of these

Answer 1

Answer:

Option A is the correct answer........

Answer 2

Answer:

option 1

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