Statistics Quiz 13
1 / 50
If mean and variance are not equal then distribution ________________?
2 / 50
An Index number of an average quality of wheat in Lahore__________ Index?
3 / 50
If any value in the data is zero, then which of the following average vanishes ______________?
4 / 50
A sample estimate is used to describe a characteristic of a_____________?
5 / 50
If in a sampling distribution of X the sample size is 25, what assumption must hold for the sampling distribution of X to be normal ?
6 / 50
The median of F,K,E, Q, U, E, N, C,Y, is ________?
7 / 50
If third moment about mean is equal to zero, then distribution is ______________?
8 / 50
In the sampling without replacement a sampling unit can be selected_______________?
9 / 50
Base year quantities are used as weights in _______________?
10 / 50
Regression co-efficient is denoted by_____________?
11 / 50
Total area under the normal curve is________?
12 / 50
A subset of the sample space is called _________________?
13 / 50
The probability of success changes from trial to trial in:___________________?
14 / 50
Statistics tests the law of ____________?
15 / 50
The joint probability is _______________?
16 / 50
A chance variation in an observational process is_____________?
17 / 50
The mean deviation of the values, 18, 12, 15 is____________?
18 / 50
if Var(??)?0 as n ? 0, then ?? is said to be______________?
19 / 50
For distribution Function F(X),F(-?)=0 and F(?)= ?
20 / 50
In Statistics, a population consists of:_____________?
21 / 50
1. Nos. is a ____ for measuring changes in a variable or a group of related variables?
22 / 50
Which of the following is an assumption underlying the use of the t-distribution ?
23 / 50
The data which have already been collected by some one are called____________?
24 / 50
Comparing the times to failure of radar transponders made by firms A, B, and C based on an airline?s sample experience with the three types of instruments one may use____________?
25 / 50
For a population consisting of 4 members, a sample of size ?2? is taken replacement, then the number of all the possible samples are?
26 / 50
Binomial distribution is symmetrical when:_________________?
27 / 50
Mean deviation is equal to 4/5 of the _________ manipulation?
28 / 50
If variance iv standard deviation is minimum if the deviation taken from______________?
29 / 50
Area of normal distribution total is equal to _______?
30 / 50
Deciles means are 1/( )?
31 / 50
The arithmetic mean _________ by 10 if 10 is added to all values?
32 / 50
The index numbers are used to measure seasonal and cyclical variations in __________?
33 / 50
In a binomial distribution the probability of ___________ changes from trial to trial?
34 / 50
In which approach to probability the outcomes are equally likely to occur ?
35 / 50
Range is the difference between largest and ___________?
36 / 50
A Constant can assume _______ value?
37 / 50
Statistics are ___________ expressed?
38 / 50
For a population with any distribution, the form of the sampling distribution of the sample mean is_____________?
39 / 50
For a given class 30-44 the midpoint will be ________________?
40 / 50
The mean of a binomial distribution is always:____________________?
41 / 50
The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is_____________?
42 / 50
What is the mean of binomial distribution ____________?
43 / 50
Any data collected by the investigator personally from the informants are called __________ data?
44 / 50
A sampling distribution is the probability distribution for which one of the following___________?
45 / 50
In a Wilcoxon Rank-Sum test__________________?
46 / 50
The process of dividing a heterogeneous_____________?
47 / 50
_________ used the word statistics for the first time during one of his lectures at a German university?
48 / 50
For a biased estimator ?? of ?, which one is correct_______________?
49 / 50
Volume index in Marshall is _______________?
50 / 50
The _____ order moments about mean are all zero?
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