Question # 1

The most frequent value in a data set is called

Choose an answer

Mean

Median

Mode

Quartile

If all items are given equal weight, the index number is called

Choose an answer

Weighted

Unweighted

Relative

Composite

The heading for different columns are called

Choose an answer

Stubs

Source notes

Columns captions

Footnotes

Binomial distribution has two

Choose an answer

Variables

Constants

Parameters

None of these

A fire in a factory delaying production for 3 weeks is an example of

Choose an answer

Seasonal variation

Secular Trend

Cyclical fluctuations

Irregular Movements

A sample is a representative part of a

Choose an answer

Continuous

Discrete

Population

Parameter

The hypergeometric model is applied when samples are taken or selections are made, from a finite population

Choose an answer

With replacement

Without replacement

With parameters

None of these

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

Choose an answer

Presence

Inverse

Absence

None of these

The heading for different rows are called

Choose an answer

Footnotes

Prefatory note

Stub

None of these

Another name of the population is

Choose an answer

Experiment

Survey

Universe

Parameter

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

Choose an answer

Classification

Tabulation

Information

Arrangement

Frequency polygon is a

Choose an answer

Line graph

Bar graph

Circular graph

Rectangle graph

In normal probability distribution, all odd order moments about mean are

Choose an answer

zero

one

maximum

none of these

Time series analysis is used to analyze data

Choose an answer

Over different time periods

Across different companies

Across different companies and across different time periods

That are qualitative

The measures of dispersion are changed by a change of

Choose an answer

Origin

Scale

Algebraic sign

None of these

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

Choose an answer

1

-1

0

None of these

The number used to describe classes in a frequency distribution are called

Choose an answer

Class limits

Relative frequency

Cumulative frequency

Width of class

The number of pulses generated is one second is called _______

Choose an answer

Accuracy

Frequency

Hertz

Data

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

Choose an answer

Historigram

Signal

Noise

Time period

Recording the time (minutes) taken by the customers to wait for its turns in a utility store while standing in a queue, is an example of

Choose an answer

Discrete variable

Continuous variable

Constant

Parameter

In chain base method, the base period is

Choose an answer

Fixed

Not Fixed

Constant

None of these

A.M is _______ affected by extreme values

Choose an answer

Not

Highly

Less

None of these

_________ is the maximum variance unbiased estimator of the population variance

Choose an answer

Estimator

Statistic

Sample mean

All of these

The arrangement of data in order of magnitude is called

Choose an answer

Order statistic

Parameter

Ratio

Parameters

If a set contains a specific number of elements then it is called

Choose an answer

Finite set

Infinite set

Universal set

Disjoint set

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

Choose an answer

a downward tendency

zero tendency

an upward tendency

None of these

When choosing an estimator of a population parameter, one should consider

Choose an answer

Sufficiently

Efficiency

Option A & B

None of these

A __________ is the totality of items or things under consideration

Choose an answer

Sample

Population

Statistic

Parameter

The data which have not undergone any statistical treatment are ________ data

Choose an answer

Primary

Secondary

Grouped

None of these

The probability of a type 1 error is

Choose an answer

Alpha

beta

Power curve

None of these

A collection of eight bits is called

Choose an answer

Byte

Word

Record

File

More Classes

Other Links

ECAT Pre General Science Statistics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer