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