(A) E[X/Y] + E[Y]
(B) E[Y/X] + E[X]
(C) Var(X) + Var(Y) + 2 Cov(X, Y)
(D) Var(X) + Var(Y) – 2 Cov(X, Y)
Category: Statistics Mcqs
What is variance of the data set: 2, 10, 1, 9, and 3?
(A) 15.5
(B) 17.5
(C) 5.5
(D) 7.5
What is the arithmetic mean of the data set: 4, 5, 0, 10, 8, and 3?
(A) 4
(B) 5
(C) 6
(D) 7
Which of the following cannot be the probability of an event?
(A) 0.0
(B) 0.3
(C) 0.9
(D) 1.2
If a random variable X has a normal distribution, then eX has a/an _____ distribution
(A) lognormal
(B) exponential
(C) Poisson
(D) binomial
What is the geometric mean of: 1, 2, 8, and 16?
(A) 4
(B) 5
(C) 6
(D) 7
Which test is applied to Analysis of Variance (ANOVA)?
(A) t test
(B) z test
(C) F test
(D) χ2 test