TS EAMCET · Maths · Probability
A die is rolled times. Getting an odd number in one trail is considered as a success. The variance of the distribution of successes is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
The variance of the distribution =npq, where, n is the number of experiment, p is success probability and q is failure probability. The probability of success, p=36=12 The probability of failure, q=36=12 Total number of trials, n=5 So, the variance, npq=54
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