Let a random variable X have a binomial distribution with mean 8 and variance 4. If P(X…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
Let a random variable X have a binomial distribution with mean 8 and variance 4. If \(P(X \leq 2)=\frac{k}{z^{15}}\), then k is equal to:
- 17
- 1
- 137
- 121
Answer
(C) 137
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT …
- Let a, b, c, d and e be the observations with mean m and standard deviation s. The standard deviation of the…
- Three groups A, B, C are competing for positions on the Board of Directors of a company. The probabilities of…
- In a random experiment, a fair die is rolled until two fours are obtained in succession. The probability that…
- For a biased die the probabilities for the diffferent faces to turn up are given below : Faces : 1 2 3 4 5 6…
- 5 girls and 10 boys sit at random in a row having 15 chairs numbered as 1 to 15. Find the probability that…
- A certain player, say X, is know to win with probability 0.3 if the track is fast and 0.4 if the track is…
- Let x 1 , x 2 ......, x n be n observations. Let _ i = x _ i + k for i = 1, 2,.........,n, where l and k are…
More Statistics and Probability questions · Browse all practice questions