ECAT Pre General Science Statistics Online Test

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  • Available questions176
  • Chapter NameCh 1

ECAT Pre General Science Statistics Online Test

  • Total Questions30

  • Time Allowed30

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ECAT Pre General Science Statistics Online Test

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Question # 1

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

Question # 2

A population consists of unlimited number of elementary units

Question # 3

Probaility of an event cannot be

Question # 4

Computer means

Question # 5

Rejecting a null hypothesis, when it is true, is called

Question # 6

A collection of eight bits is called

Question # 7

Data are classified according to one characteristic, called

Question # 8

The index numbers are calculated in

Question # 9

The first moment about mean is equal to

Question # 10

The base period in fixed base should be

Question # 11

The simplest form of the continuous distribution is the

Question # 12

If any value in the data set is zero, then it is not possible to compute

Question # 13

Most of the decisions that affect our daily lives are based upon

Question # 14

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

Question # 15

The main function of a computer is

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

A well defined collection of distinct objects is called

Question # 20

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

Question # 21

Selecting a representative sample from a given population called

Question # 22

The part of column captions is called

Question # 23

The heading for different rows are called

Question # 24

The heading for different columns are called

Question # 25

First-hand collected data is called

Question # 26

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

Question # 27

The cyclical fluctuations are

Question # 28

Binomial distribution has two

Question # 29

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

Question # 30

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

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