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Statistics Quiz 11

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Statistics Quiz 11

1 / 50

A experiment repeated number of time one by one is called _________________?

2 / 50

Sample variance S2 is unbiased estimator of population variance 26 because ________________?

3 / 50

For +ve and -ve skewed, check the sign of _______?

4 / 50

If in a binomial distribution n = 1 then E(X) is:____________________?

5 / 50

Sample proportion P is __________ estimator?

6 / 50

?xy is always equal to_____________?

7 / 50

N ? n/N -1 is called ___________ population?

8 / 50

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

9 / 50

The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this distribution is_____________?

10 / 50

The possibility of total outcome in a coin equal to _______________?

11 / 50

Which of the following is not a measure of central tendency ?

12 / 50

_________ statistics deals with collection, presentation and analysis of data?

13 / 50

When in a frequency distribution the maximum frequency occur at one end, then the frequency curve of such distribution is ________________?

14 / 50

The sampling error is the_____________?

15 / 50

Which of the following test use Rank Sums____________?

16 / 50

Normal distribution has ___________?

17 / 50

When ?n? becomes very large, binomial distribution tends to ______________?

18 / 50

The shape of normal curve depends upon ?

19 / 50

In a binomial distribution, n = 10 p= 3/5, its mean is:_________________?

20 / 50

Normal distribution is _____ distribution?

21 / 50

Standard normal variable Z is___________?

22 / 50

Area to the right of (z=0) is the area for ____ values of z?

23 / 50

Which of the following is not based on all the observations ?

24 / 50

_____________is used to compare the variation or dispersion in two or more sets of data even though they are measured in different units?

25 / 50

If Y=-8X ? 5 and SD of X is 3, then SD of Y is______________?

26 / 50

If all values are same then the measure of dispersion will be?

27 / 50

Ratio between given year and base year is called __________ in percentage?

28 / 50

If a & b are constants, then Var (a + bX) equal to_________________?

29 / 50

When using the sign test, if two scores are tied, then_____________?

30 / 50

The mean deviation of the values, 18, 12, 15, is_______________?

31 / 50

Average is good if it is easy to ____________?

32 / 50

The mean and variance of binomial distribution are ______________?

33 / 50

The arithmetic mean of 10,8,6,4, and 2 is ______________?

34 / 50

Let X1,X2,??,Xn be a random sample from a density,,,, f(x ? ?) where ? is a value of the random variable ?with known density g?(?) Then the estimator ?(?) with?/ respect to the prior g?(?) is define as_________________E[?(?)?X1,X2,?..,Xn] is called?

35 / 50

Which of the formula is used in chain indices: ________________?

36 / 50

Fisher?s ideal index number is also obtained by _______________?

37 / 50

In constructing a histogram which is to be taken along X-axis__________?

38 / 50

The special rule of multiplication of probability, the events must be ______________?

39 / 50

The headings for various columns are said to be ________________?

40 / 50

The measure of Dispersion can never be________________?

41 / 50

. If the occurrence of one event means that another cannot happen, then the events are _______________?

42 / 50

The equation of standard normal distribution is f(z)=________?

43 / 50

A simple aggregate quantity index is used to______________?

44 / 50

Sum of deviations will be zero if it is taken from_________________?

45 / 50

The shape of normal distribution does depend upon _____ and variance?

46 / 50

In normal distribution, mean ______= Mode?

47 / 50

If the standard deviation of a population is 9, the population variance is_____________?

48 / 50

The Spearman Rank-Correlation test requires that the______________?

49 / 50

In the plural sense, statistic means____________?

50 / 50

Which of the following cannot be Ho_________________?

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