Question # 1

The degree of relationship between the two attributes is called

Choose an answer

Association

Dichotomy

Variable

None of these

_________ is the maximum variance unbiased estimator of the population variance

Choose an answer

Estimator

Statistic

Sample mean

All 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 variable whose values depend upon the outcomes of a random experiment is called a

Choose an answer

Constant

Parameter

Random variable

Continuous variable

If A denote that the object possesses the attribute A, thenα, means

Choose an answer

β

Notβ

Notα

Not A

Primary data and ungrouped data are

Choose an answer

Same

Opposite

Not same

Proportional

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

Choose an answer

Accuracy

Error

Precision

Bias

Relative measures have no

Choose an answer

Negative values

Decimal values

Units

Value

The two regression lines are perpendicular to each other if

Choose an answer

r = 1

r = 0

r = -1

None of these

A specific value of an estimator computed from the sample data after the sample has been observed is called

Choose an answer

Point estimate

Statistical Inference

Statistic

Parameter

Mean is highly affected by

Choose an answer

Even values

Odd values

Zero values

Extreme value

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

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

Choose an answer

Absolute certainty

Likelihood

Independent

None of these

In the study of two attributes, (B) =

Choose an answer

(Aβ) + (αB)

(AB) + (Aβ)

(B) + (β)

(AB) + (αβ)

The arrangement of data in order of magnitude is called

Choose an answer

Order statistic

Parameter

Ratio

Parameters

The positive square root of the variance is refered to as the

Choose an answer

Mean deviation

Quartile deviation

Standard deviation

Range

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

Choose an answer

0

1

n

None of these

Probaility of an event cannot be

Choose an answer

Positive

One

Negative

None of these

A central value is also called

Choose an answer

Central tendency

Variability

Population

Parameter

A well defined collection of distinct objects is called

Choose an answer

Probability

Chance

Element

A set

The difference between the upper and the lower class boundaries of a class is called

Choose an answer

Class interval

Class distribution

Frequency

Cumulative frequency

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

Choose an answer

Infinite population

Finite population

Discrete sampling

None of these

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

Choose an answer

Estimation

Statistical Inference

Point estimate

None of these

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

Choose an answer

0.15

0.90

0.85

0.95

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

Choose an answer

Population growth

Law suits

Holidays

Recessions

A sample is a representative part of a

Choose an answer

Continuous

Discrete

Population

Parameter

The height of students, between 5.0 and 5.9 feet, is an example of

Choose an answer

Discrete variable

Continuous variable

Constant

Parameter

Frequency polygon is a

Choose an answer

Line graph

Bar graph

Circular graph

Rectangle graph

The graph of the time series is called

Choose an answer

Histogram

Pie chart

Bar diagram

Historigram

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

Choose an answer

a

a E (x)

E (x)

a E (x) + B

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