Geometric means of X1 and X2 is________________?

Related Mcqs:

1. Given the N values in a series, the geometric mean is______________?

   A. The third root of the product of N values
   B. The square root of the product of N values
   C. The fourth root of the product of N values
   D. The Nth root of the product of N values

2. The Geometric Mean of -2, 4, 03, 6, 0 will be______________?

   A. -3
   B. 0
   C. 3
   D. Cannot be Computed
   E. None of these

3. If 10% is added to each value of variable, the geometric mean of new variable is added by_______________?

   A. 5%
   B. 10%
   C. No Change
   D. 110%
   E. 90%

4. Which of the following case is true for hyper geometric distribution________________?

   A. Probability remains constant for all the trials.
   B. Probability changes from trial to trial
   C. Successive trial are dependent
   D. Both (b) & (c) but not (a)

5. N(µ, 2σ) means normally distribution with mean u and variance2σ then (3σ, 4) means _____________?

   A. 46
   B. 76
   C. 36
   D. 47

6. 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

7. Var(2X+3) is________________?

   A. 5 Var(X)
   B. 4 Var(X)
   C. 4 Var(X)+3
   D. 5 Var(X)+3

8. The Harmonic Mean of any two numbers is________________?

   A. a+b2
   B. 2aba+b
   C. ab−−√
   D. a+b

9. We use normal distribution when “n” is________________?

   A. Small
   B. None
   C. Fixed
   D. Large

10. In a normal distribution E(X-µ)2 is________________?

    A. Variance
    B. Mean Deviation
    C. Standard Deviation
    D. Quartile Deviation