If p= 0.1 and n = 400 then mean _______________?

Related Mcqs:

1. Random samples of size 17 are from a population that has 200 elements, a mean of 36, and a standard deviation of 8. which of the following best describes the from of the sampling distribution of the sample mean for this situation ?

   A. Approximately normal because the sample size is small relative to the population size
   B. Approximately normal because of the central limit theorem
   C. Exactly
   D. None of these alternatives is correct

2. Combine mean calculated by different given mean is ________?

   A. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu
   B. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4
   C. n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu
   D. ∑n1x/x1

3. If mean of the binomial probability distribution is 4.8, then variance of this distribution is :_______________?

   A. -2.3
   B. 5.3
   C. -4.8
   D. 2.3

4. The minimum variance unbiased estimator of the population mean is _______________?

   A. 6/√n
   B. S/√n
   C. S2/n
   D. 6x/√n

5. Find the median of the following datA. 160, 180, 200, 280, 300, 320, 400?

   A. 140
   B. 300
   C. 180
   D. 280

6. 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

7. If n = 400 and P=.69 then 90% C.I for P is _________________?

   A. 652 and . 728
   B. .314 and .652
   C. .798 and .745
   D. None of these

8. if in a binomial probability distribution mean and variance are 6 and 2.4 respectively, then the parameters of this distribution are:____________________?

   A. n = 10, p = 6/10
   B. n = 50, p = 6/50
   C. n = 10, p = 3/5
   D. n = 10, p = 2/5

9. In binomial distribution with ________ trials mean is np and variance is npq?

   A. Dependent
   B. Independent
   C. Linear
   D. Equal

10. The mean of binomial distribution is:__________________?

    A. npq
    B. np
    C. √npq
    D. √np
    E. nq—√