ECAT Pre General Science MCQ Test With Answer for Statistics Full Book

MCQ's Test For ECAT Pre General Science Statistics Online Test

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ECAT Pre General Science Statistics Online Test

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Question # 1

A point estimate is a single number that is used to estimate an unknown

Question # 2

The shape of binomial distribution depends upon the value of its

Question # 3

In symmetrical distribution, mean, median and mode are

Question # 4

The Greek lettersα ,β ....... are used to denote the ________ of A,B,C ............

Question # 5

The null hypothesis always refers to a specified value of the

Question # 6

The sum of deviations of the value from the mean is always

Question # 7

The difference between the upper and the lower class boundaries of a class is called

Question # 8

A computer can execute

Question # 9

In the study of two attributes, (B) =

Question # 10

Another name of the population is

Question # 11

The two attributes A and B are independent, if the co-efficient of association

Question # 12

The number of tally count for each value is its

Question # 13

The probability density function of a continuous random variable Y is specified by a

Question # 14

The _______ is an irregular component of variation in a time series

Question # 15

For a particular test, alpha = 0.05 and beta = 0.10. The power of this test is

Question # 16

1 GHz equals to

Question # 17

_________ is the maximum variance unbiased estimator of the population variance

Question # 18

The process of dividing the objects into two mutually exclusive classes is called

Question # 19

We refer the difference between the sample result and the true value as

Question # 20

A population consists of unlimited number of elementary units

Question # 21

A null hypothesis is always one of status quo or

Question # 22

The sum of probabilities of events of a sample space is always

Question # 23

The base period in fixed base should be

Question # 24

Mean deviation is always

Question # 25

The unit of frequency is

Question # 26

The positive square root of the variance is refered to as the

Question # 27

A variable whose values depend upon the outcomes of a random experiment is called a

Question # 28

If no attributes are specified, then the order of the class is

Question # 29

A ___________ is a line or curve that shows the general tendency of a time series.

Question # 30

A central value is also called

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ECAT Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 The heading for different rows are called
A. Footnotes
B. Prefatory note
C. Stub
D. None of these
2 Sample mean is a
A. Constant
B. Parameter
C. Variable
D. Statistic
3 If a set contains a specific number of elements then it is called
A. Finite set
B. Infinite set
C. Universal set
D. Disjoint set
4 The collecting of information from a part of the population is called making a
A. Census
B. Complete enumeration
C. Discrete sampling
D. None of these
5 The null hypothesis always refers to a specified value of the
A. Population parameter
B. Statistic
C. Sample statistic
D. None of these
6 The most frequent value in a data set is called
A. Mean
B. Median
C. Mode
D. Quartile
7 A null hypothesis is always one of status quo or
A. effected
B. having some difference
C. having alternative
D. no difference
8 In chain base method, the base period is
A. Fixed
B. Not Fixed
C. Constant
D. None of these
9 The two attributes A and B are independent, if the co-efficient of association
A. Equals to one
B. Equals to zero
C. Not equals to zero
D. None of these
10 The part of the table containing row captions is called
A. Stub
B. Row captions
C. Box-head
D. Row-head

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