ECAT Pre General Science Statistics Online Test

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ECAT Pre General Science Statistics Online Test

  • Total Questions30

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ECAT Pre General Science Statistics Online Test

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Question # 1

Lack of symmetry is called

Question # 2

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

Question # 3

The part of the table containing row captions is called

Question # 4

In chain base method, the base period is

Question # 5

The ______ is a systematic component of variation in a time series.

Question # 6

A discrete variable is also known as

Question # 7

The results obtained by rolling a die, is an example of

Question # 8

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

Question # 9

In data of birth's and death'd and epidemics as a result of advancement in medical sciences, the secular trend is usually

Question # 10

The frequency of classes of the highest order are called

Question # 11

Probaility of an event cannot be

Question # 12

The simplest form of the continuous distribution is the

Question # 13

A set od data depending on the time is called

Question # 14

Statistical laws are true

Question # 15

The seasonal variations are

Question # 16

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

Question # 17

If the sum of the product of deviations of x and y series from their means is zero, the correlation coefficient will be

Question # 18

The sum of probabilities of a discrete random variable is always

Question # 19

The graph of the time series is called

Question # 20

When a pair of dice is rolled, the sample space consists of

Question # 21

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

Question # 22

Quantities which don't vary from individual to individual are called

Question # 23

The branch of statistics concerned with using probability concepts to deal with uncertainty in decision making is called

Question # 24

If "a" and "b" are constants, then E(ax + b) =

Question # 25

In symmetrical distribution, mean, median and mode are

Question # 26

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

Question # 27

In the study of two attributes, (B) =

Question # 28

The process of making tables or arranging data into rows and columns is called

Question # 29

When statistics is applied in Economics, it is called:

Question # 30

The main function of a computer is

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