What will be the variance of the sample following hyper geometric distribution and having 5 items defective in 100 lot items, if 10 samples are taken without replacement?

a) 0.431818

b) 0.410023

c) 0.483838

d) 0.568898

2. For a Poisson distribution, parameter is having a value of 7. What is the variance for the distribution?

a) 2.64

b) 2.78

c) 7

d) 14

3. For 9 Bernoulli trials, what will be the mean of trials when the probability of failure is 0.56?

a) 5.04

b) 1.74

c) 3.96

d) 2.82

4. In sample fraction defective, the symbol represents that ______

a) p is an estimate of the true value of binomial parameter p

b) It is the "raised to power" operator

c) It is having no significance

d) It is the true value of binomial parameter p

6. When is Pascal distribution, called negative binomial distribution?

a) When r>0 but not necessarily an integer

b) When r<0 but an integer

c) When r>3 and an integer

d) When r=0 and an integer

7. When r=1 in a Pascal distribution, what is this case called?

a) Negative binomial distribution

b) Positive binomial distribution

c) Hyper geometric distribution

d) Geometric distribution

8. Lognormal distributions are a part of discrete distributions.

a) True

b) False