Question # 1

The weighted price index is sometimes referred to as the

Choose an answer

Simple price

Composite index

Multi index

None of these

The unit of frequency is

Choose an answer

Hertz

Bytes

Mega bytes

None of these

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

Choose an answer

Less than 4

Equal to 4

Greater than 4

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

For a two tailed test of hypothesis at alpha = 0.10, the acceptance region is the entire region

Choose an answer

To the right of the critical value

Between the two critical values

Outside of the two critical values

To the left of the positive critical value

Which of the following is not a hardware

Choose an answer

Compiler

CPU

Chip

Memory unit

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

Choose an answer

Parallel

Inclined at the angle <

Perpendicular

None of these

Selecting a representative sample from a given population called

Choose an answer

Finite population

Sampling

Infinite population

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

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

Choose an answer

Sufficiently

Efficiency

Option A & B

None of these

If any value is zero, then it is impossible to calculate

Choose an answer

H.M

Median

A.M

None of these

A computer stores instructions in

Choose an answer

English language

Octal Number System

Binary Number System

Decimal Number System

In chain base year method, the _________ is fixed

Choose an answer

Year

Price

Quantity

Price and quantity

In continuous distribution, P(y=a) and P(y= b) is always

Choose an answer

Zero

One

Undefined

Negative

First-hand collected data is called

Choose an answer

primary data

secondary data

grouped data

ungrouped data

The main function of a computer is

Choose an answer

Data storage

Speed

Data Processing

None of these

If x and y are independent variables, then two lines of regression are

Choose an answer

x= 0, y = 0

x = 0, y = const

x = const, y = 0

x= const, y = const

__________ is a measure of number of vibration per second

Choose an answer

Frequency

Speed

Hertz

Bytes

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

Choose an answer

0

1

n

None of these

The most common measures of absolute variability are also called

Choose an answer

Range

Measures of spread

Relative measures

Mean deviation

_______ is a quantity computed from a population when the entire population is available.

Choose an answer

Variables

Surveys

Ratio

Parameters

The frequency of classes of the highest order are called

Choose an answer

Consistence of frequencies

Ultimate class frequencies

Independence of attributes

None of these

The first moment about mean is equal to

Choose an answer

Mean

Zero

Median

Mode

A time series of annual data can contain which of the following components

Choose an answer

Secular Trend

Cyclical fluctuation

Seasonal variation

(A) and (B) only

Binomial distribution has two

Choose an answer

Variables

Constants

Parameters

None of these

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

Choose an answer

Variables

Surveys

Constant

Parameters

G.M becomes zero if any of the observation is

Choose an answer

zero

1

similar

Opposite

Sample mean is a

Choose an answer

Constant

Parameter

Variable

Statistic

A __________ is the totality of items or things under consideration

Choose an answer

Sample

Population

Statistic

Parameter

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

Choose an answer

Parallel

Perpendicular

Coincident

Inclined at 45°to each other

1 GHz equals to

Choose an answer

1024 Hz

10⁴MHz

10²MHz

1024 MHz

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