Join ExamsbookAnswer : 3. "0.7"
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.5
Q: 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.
- 10.21false
- 20.3false
- 30.7true
- 4None of thesefalse
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Answer : 3. "0.7"
Explanation :
Answer: C) 0.7 Explanation: P(atleast B) = P( B or A) = P(B) + P(A) = (0.3) + (0.4) = 0.7
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