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# Statistics Quiz 9

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Statistics Quiz 9

1 / 50

The number of accidents in a city during 2012 is____________?

2 / 50

Normal Distribution ?

3 / 50

The frequency distribution mean > Median > Mode is called __________?

4 / 50

The Harmonic Mean of any two numbers is________________?

5 / 50

Binomial distribution is symmetrical when P=_________________?

6 / 50

Correlation coefficient lies between__________________?

7 / 50

In binomial distribution the probability of success remains __________ from trial to trial?

8 / 50

Volume Index in Marshall is ____________?

9 / 50

If y = bx + a the mean deviation of y is_____________?

10 / 50

In hypergeometric distribution, the trial are:_______________?

11 / 50

Price in proceeding year used in the method is called __________?

12 / 50

The Runs test results in rejecting the null hypothesis of randomness when______________?

13 / 50

There are ____________ parameter in Binomial distribution?

14 / 50

The binomial distribution is symmetrical when:______________?

15 / 50

Data which have not been arranged in systematic order is called___________?

16 / 50

Which of the following describe the middle part of a group of numbers ?

17 / 50

The graph obtained by joining the mid points of the tops of adjacent rectangles in histogram is called ______________?

18 / 50

Data arranging into rows and columns are called______________?

19 / 50

Class _________ is the difference between two class limit?

20 / 50

Data being used by an agency which is originally collected by them are _______ data?

21 / 50

Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________?

22 / 50

If x = 3 then value of regression co-efficient of X or Y is ________________?

23 / 50

Life of a T.V picture tube is a____________?

24 / 50

The first moment about means is always_________________?

25 / 50

You asked five of your classmates about their height. On the basis of this information, you states the average height of all student in your university or college is 67 inches. This is an example of____________?

26 / 50

In a binomial distribution mean and variance is ________________?

27 / 50

A coin is so weighted that P (T) = 2P(H) then P(H) is _______________?

28 / 50

If the conditional distribution of X1,X2,?..Xn given S=s, does not depends on ?, for any value of S=s the statistics S=s(X1,X2,?..Xn) is called______________?

29 / 50

The mathematical exception of x + y is equal to ________________?

30 / 50

If E(x) is the expected value of X then E[x ? E(x)]= ___________________?

31 / 50

The median of normal distribution corresponds to the value of Z equal to_________________?

32 / 50

if Var(T2)_______________?

33 / 50

A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is___________?

34 / 50

when a three die rolled the sample space consists of _____________?

35 / 50

A list of sample _________ is called sample space?

36 / 50

In a binomial distribution mean and variance is _________________?

37 / 50

Let X1,X2,?Xn be a random sample from the density f(x;(?), where ? may be vector. If the conditional distribution of X1,X2,?Xn given S=s does not depend on ? for any value of s of S, then statistic is called?

38 / 50

Census reports used as a source of data is____________?

39 / 50

A source note foot are the _______________?

40 / 50

In a certain normal distribution having ? = 35 and variance = 16, then mode will be_______________?

41 / 50

A set of jointly sufficient statistic is defined to be minimal sufficient if and only if_______________?

42 / 50

The variance of randomvariable of x then var(x) = E[x-E[x]2 = E[________]?

43 / 50

If bxy = -.8 by x = 1.2 then value of r is ________________?

44 / 50

Median is always central value even if the data is _______?

45 / 50

If any value in the data is zero, then it is not possible to have _______?

46 / 50

The Normal Curve is asymptotic to the?

47 / 50

A simple aggregate price index_____________?

48 / 50

Eyes color of employees is the example of____________?

49 / 50

Relative measure of skewness was introduced by _____________?

50 / 50

The experiment is repeated a _____________ number of times?