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