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