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