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

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ECAT Pre General Science Statistics Online Test

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Question # 1

The frequency of classes of the highest order are called

Question # 2

When statistics is applied in Economics, it is called:

Question # 3

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

Question # 4

Indices that involve a group of commodities are referred to as

Question # 5

Binomial distribution has two

Question # 6

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

Question # 7

Probability sampling is also called

Question # 8

Sum of absolute deviations are minimum if computed from

Question # 9

If r = 1 or -1, the regression lines are

Question # 10

The degree of relationship between the two attributes is called

Question # 11

The null hypothesis (Ho) is the hypothesis that is always

Question # 12

Which one of the following is an example of seasonal variation

Question # 13

Time series analysis is used to analyze data

Question # 14

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

Question # 15

A sample is a representative part of a

Question # 16

Mean deviation is always

Question # 17

The difference between the highest and lowest values in a population is called

Question # 18

Mean deviation about the median is

Question # 19

The unit of frequency is

Question # 20

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

Question # 21

A computer stores instructions in

Question # 22

The difference between the expected value of a statistic and the true value of the parameter being estimated is called

Question # 23

A collection of eight bits is called

Question # 24

If P(B) = 0, then the conditional probability is

Question # 25

Geometric mean of 0, 5, 1, 4, 8 is

Question # 26

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

Question # 27

A symmetrical distribution has mean equal to 4. Its mode will be

Question # 28

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

Question # 29

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

Question # 30

The CPU of a digital computer consists of

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