Probability Ques 124
For a biased die the probabilities for the different faces to turn up are given below
| Face | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Probability | 0.1 | 0.32 | 0.21 | 0.15 | 0.05 | 0.17 |
This die is tossed and you are told that either face $1$ or face $2$ has turned up. Then, the probability that it is face $1 $, is… .
(1981, 2M)
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Answer:
Correct Answer: 124.$(\frac{5}{21})$
Solution:
Formula:
- Probability (face 1$)=\frac{0.1}{0.1+0.32}=\frac{0.1}{0.42}=\frac{5}{21}$
BETA
