Subject
Quantitative Aptitude
Topic
Probability
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.
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.
ক)
0.21খ)
0.3গ)
0.7ঘ)
None of theseExplanation
P(atleast B) = P( B or A) = P(B) + P(A) = (0.3) + (0.4) = 0.7Related questions
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