Statistics Quiz 9
1 / 50
If E(x) is the expected value of X then E[x ? E(x)]= ___________________?
2 / 50
A list of sample _________ is called sample space?
3 / 50
The graph obtained by joining the mid points of the tops of adjacent rectangles in histogram is called ______________?
4 / 50
In binomial distribution the probability of success remains __________ from trial to trial?
5 / 50
The number of accidents in a city during 2012 is____________?
6 / 50
Eyes color of employees is the example of____________?
7 / 50
If bxy = -.8 by x = 1.2 then value of r is ________________?
8 / 50
The frequency distribution mean > Median > Mode is called __________?
9 / 50
when a three die rolled the sample space consists of _____________?
10 / 50
Median is always central value even if the data is _______?
11 / 50
If any value in the data is zero, then it is not possible to have _______?
12 / 50
The variance of randomvariable of x then var(x) = E[x-E[x]2 = E[________]?
13 / 50
Which of the following describe the middle part of a group of numbers ?
14 / 50
The first moment about means is always_________________?
15 / 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____________?
16 / 50
Data being used by an agency which is originally collected by them are _______ data?
17 / 50
If y = bx + a the mean deviation of y is_____________?
18 / 50
A source note foot are the _______________?
19 / 50
The median of normal distribution corresponds to the value of Z equal to_________________?
20 / 50
if Var(T2)_______________?
21 / 50
Census reports used as a source of data is____________?
22 / 50
Data which have not been arranged in systematic order is called___________?
23 / 50
Correlation coefficient lies between__________________?
24 / 50
A set of jointly sufficient statistic is defined to be minimal sufficient if and only if_______________?
25 / 50
Life of a T.V picture tube is a____________?
26 / 50
A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is___________?
27 / 50
In a certain normal distribution having ? = 35 and variance = 16, then mode will be_______________?
28 / 50
If x = 3 then value of regression co-efficient of X or Y is ________________?
29 / 50
Normal Distribution ?
30 / 50
A coin is so weighted that P (T) = 2P(H) then P(H) is _______________?
31 / 50
The Normal Curve is asymptotic to the?
32 / 50
A simple aggregate price index_____________?
33 / 50
The binomial distribution is symmetrical when:______________?
34 / 50
Binomial distribution is symmetrical when P=_________________?
35 / 50
Price in proceeding year used in the method is called __________?
36 / 50
There are ____________ parameter in Binomial distribution?
37 / 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______________?
38 / 50
The Runs test results in rejecting the null hypothesis of randomness when______________?
39 / 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?
40 / 50
Relative measure of skewness was introduced by _____________?
41 / 50
In a binomial distribution mean and variance is _________________?
42 / 50
The experiment is repeated a _____________ number of times?
43 / 50
In a binomial distribution mean and variance is ________________?
44 / 50
Class _________ is the difference between two class limit?
45 / 50
In hypergeometric distribution, the trial are:_______________?
46 / 50
Volume Index in Marshall is ____________?
47 / 50
Data arranging into rows and columns are called______________?
48 / 50
The Harmonic Mean of any two numbers is________________?
49 / 50
The mathematical exception of x + y is equal to ________________?
50 / 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______________?
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