जॉइन Examsbookउत्तर : 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
प्र: 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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उत्तर : 3. "0.7"
व्याख्या :
Answer: C) 0.7 Explanation: P(atleast B) = P( B or A) = P(B) + P(A) = (0.3) + (0.4) = 0.7
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.