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