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.Management Sciences
Category: Statistics Mcqs
If X and Y are independent then SD (X − Y) is________________?
A. SD(X)−SD(Y)
B. SD(X)+SD(Y)
C. SD(X)+SD(Y)−−−−−−−−−−−−−−√
D. Var(X)+Var(Y)−−−−−−−−−−−−−−−√
18) If Y=−8X − 5 and SD of X is 3, then SD of Y is
The probability of getting at least one head when two balance coins are tossed once __________________?
A. 1/4
B. 2/4
C. 3/4
D. 4/4
In binomial experiment, the probability of success is denoted by __________________?
A. P
B. q
C. P
D. 1 -P
The probability that the sum is odd if two dice are thrown:_________________?
A. 18/36
B. 9/36
C. 6/36
D. 12/36
if f(x1,x2,…xn;θ)=g(θˆ;θ)h(x1,x2,….,xn), then θˆ is____________?
A. Consistent
B. Sufficient
C. Efficient
D. Unbiased
Life of a T.V picture tube is a____________?
A. Discrete variable
B. Continuous variable
C. Qualitative variable
D. Constant
The frequent value of the data if it exists is called ________________?
A. Median
B. Quartiles
C. Mode
D. Deciles
Arithmetic mean of two positive numbers “X” and “Y” is_________________?
A. ab2
B. 2a2
C. (a+b)/2
D. a−b2
E. 2a+b
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