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Statistics Quiz 13

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Statistics Quiz 13

1 / 50

In a binomial distribution the probability of ___________ changes from trial to trial?

2 / 50

Deciles means are 1/( )?

3 / 50

A sampling distribution is the probability distribution for which one of the following___________?

4 / 50

The _____ order moments about mean are all zero?

5 / 50

Base year quantities are used as weights in _______________?

6 / 50

Range is the difference between largest and ___________?

7 / 50

For a population consisting of 4 members, a sample of size ?2? is taken replacement, then the number of all the possible samples are?

8 / 50

The process of dividing a heterogeneous_____________?

9 / 50

If variance iv standard deviation is minimum if the deviation taken from______________?

10 / 50

_________ used the word statistics for the first time during one of his lectures at a German university?

11 / 50

if Var(??)?0 as n ? 0, then ?? is said to be______________?

12 / 50

1. Nos. is a ____ for measuring changes in a variable or a group of related variables?

13 / 50

For distribution Function F(X),F(-?)=0 and F(?)= ?

14 / 50

In which approach to probability the outcomes are equally likely to occur ?

15 / 50

Which of the following is an assumption underlying the use of the t-distribution ?

16 / 50

The probability of success changes from trial to trial in:___________________?

17 / 50

A sample estimate is used to describe a characteristic of a_____________?

18 / 50

If in a sampling distribution of X the sample size is 25, what assumption must hold for the sampling distribution of X to be normal ?

19 / 50

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

20 / 50

Comparing the times to failure of radar transponders made by firms A, B, and C based on an airline?s sample experience with the three types of instruments one may use____________?

21 / 50

For a biased estimator ?? of ?, which one is correct_______________?

22 / 50

In Statistics, a population consists of:_____________?

23 / 50

A subset of the sample space is called _________________?

24 / 50

For a given class 30-44 the midpoint will be ________________?

25 / 50

Volume index in Marshall is _______________?

26 / 50

Any data collected by the investigator personally from the informants are called __________ data?

27 / 50

The joint probability is _______________?

28 / 50

In the sampling without replacement a sampling unit can be selected_______________?

29 / 50

The data which have already been collected by some one are called____________?

30 / 50

For a population with any distribution, the form of the sampling distribution of the sample mean is_____________?

31 / 50

An Index number of an average quality of wheat in Lahore__________ Index?

32 / 50

If any value in the data is zero, then which of the following average vanishes ______________?

33 / 50

Binomial distribution is symmetrical when:_________________?

34 / 50

If mean and variance are not equal then distribution ________________?

35 / 50

Statistics are ___________ expressed?

36 / 50

Statistics tests the law of ____________?

37 / 50

The arithmetic mean _________ by 10 if 10 is added to all values?

38 / 50

The mean of a binomial distribution is always:____________________?

39 / 50

A chance variation in an observational process is_____________?

40 / 50

Total area under the normal curve is________?

41 / 50

The median of F,K,E, Q, U, E, N, C,Y, is ________?

42 / 50

What is the mean of binomial distribution ____________?

43 / 50

In a Wilcoxon Rank-Sum test__________________?

44 / 50

Mean deviation is equal to 4/5 of the _________ manipulation?

45 / 50

Area of normal distribution total is equal to _______?

46 / 50

If third moment about mean is equal to zero, then distribution is ______________?

47 / 50

The index numbers are used to measure seasonal and cyclical variations in __________?

48 / 50

Regression co-efficient is denoted by_____________?

49 / 50

A Constant can assume _______ value?

50 / 50

The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is_____________?

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