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

__________ is a measure of number of vibration per second

Question # 2

The weighted price index is sometimes referred to as the

Question # 3

In the study of two attributes, (B) =

Question # 4

In the study of two attributes, n =

Question # 5

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

Question # 6

A sample statistic that is used to estimate the unknown true value of a population parameter is called

Question # 7

The graph of the time series is called

Question # 8

Bias is

Question # 9

The attributes denoted by A, B, ................ are called

Question # 10

The cyclical fluctuations are

Question # 11

If the correlation coefficient r = 0, the two regression lines are

Question # 12

A sample is a part of

Question # 13

The shape of binomial distribution depends upon the value of its

Question # 14

The mean of the absolute deviations between the values and their median is called

Question # 15

Binomial distribution has two

Question # 16

In symmetrical distribution, mean, median and mode are

Question # 17

Graph of time series is called

Question # 18

The index numbers are calculated in

Question # 19

Which of the following would likely be a seasonal component of a time series

Question # 20

The collecting of information from a part of the population is called making a

Question # 21

Probaility of an event cannot be

Question # 22

The heights of all the students enrolled at a college in a given year, is an example of

Question # 23

The part of column captions is called

Question # 24

An estimator is always is

Question # 25

The statement of the alternative hypothesis never contains a(n) ________ sign regarding the specified value of the parameter

Question # 26

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

Question # 27

Relative measures have no

Question # 28

The main function of a computer is

Question # 29

A set od data depending on the time is called

Question # 30

Number of instructions processed in one second is called ________ of computer

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ECAT Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 The most common measures of absolute variability are also called
A. Range
B. Measures of spread
C. Relative measures
D. Mean deviation
2 A set that contains no element is called
A. Null set
B. Singleton set
C. Zero set
D. Infinite set
3 Which one of the following is an example of seasonal variation
A. An increase in consumption of electricity in summer
B. A steel strike, delaying production for a week
C. A continually increasing demand for smaller automobiles
D. None of these
4 Statistical laws are true
A. On the average
B. In each case
C. In long run
D. None of these
5 In the study of two attributes, n =
A. B +α
B. (AB) + (AB)
C. AB + (αB)
D. (A) + (α)
6 _________ is the maximum variance unbiased estimator of the population variance
A. Estimator
B. Statistic
C. Sample mean
D. All of these
7 A computer can execute
A. a flow chart
B. a program
C. an algorithm
D. all of the above
8 The sum of squares of the deviations of the observation from their mean is
A. Minimum
B. Maximum
C. Zero
D. One
9 When choosing an estimator of a population parameter, one should consider
A. Sufficiently
B. Efficiency
C. Option A & B
D. None of these
10 Lack of symmetry is called
A. Dispersion
B. Moment
C. Skewness
D. Kurtosis

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