A. E(x + 0)
B. E(x + x)
C. E(x) + E(y)
D. E(y)
Related Mcqs:
- For discrete random ‘X’, the expectation of X i.e., E(x) is equal to:________________?
A. ∑P(x)
B. ∑x.P(x)
C. ∑x2P(x)
D. One - 5C5 is equal to ________________?
A. 5
B. 5×5
C. 1
D. None of these - If mean and variance are not equal then distribution ________________?
A. None
B. Symmetrical
C. Skewed
D. Equal - If a & b are constants, then Var (a + bX) equal to_________________?
A. Var(bX) + a
B. b2 Var(X)
C. b Var(x)
D. None of these - Two digit random numbers are ________________?
A. 2
B. 10
C. 99
D. 100 - The basic random numbers are ________________?
A. 0 and 1
B. 0,1,2,…………9
C. 1,2,3….10
D. None of these - The time taken by an athlete to run a 400 mile race in SAF games ________________?
A. Continuous data
B. Random
C. Discrete data
D. Non of these - Addition Law of probability for mutually exclusive event is equal _______________?
A. P(AUB)=P(A) + (B)
B. P(AUB) = P(A) + P(B) – P(A∩B)
C. P(A∩B) = P(A) + P(B) + P(A∩B)
D. P(A∩B) = P(A). P(B - The mean and the variance are equal in________________?
A. All probability distribution
B. The hypergeometric distribution
C. The binomial distribution
D. The Poisson distribution - The A.M. is greater than mode is equal to ______________?
A. +vely
B. Skewness
C. Negatively
D. zero
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