Question # 1

For a constant K ,the variance of K.

Choose an answer

Zero

A^-2

K

None of these

The probability of a continuous random variable at x = a is ---------------

Choose an answer

One

Zero

Between 0 and 1

More than one

F(-∞) is always equal to

Choose an answer

Zero

One

Two

Negative one

If a is a constant then E(a) is equal to

Choose an answer

a

Square of a

Zero

2a

the term 'event' is used for.

Choose an answer

Time

Subaet of the sample space

Total number of outcomes

Probability

Probability distribution of a continuous random variable can be presented by

Choose an answer

tabular form

Formula

Curve

None of these

Choose an answer

4/10

2/10

1/10

0

A random variable is also called.

Choose an answer

Chance variable

Stochastic variable

Discrete variable

Both A and B

the collection of all possible outcome of a random experimnet is called.

Choose an answer

Sample point

Sure event

sample event

simple event

E(y-μ) is equal to

Choose an answer

E(y)

μ

zero

y-μ

A student soved 25 questions from first 50 questios of a book to be solved. The prob, that he will solve the remaining all questions.

Choose an answer

0.25

0.51

1

0

If a Vann diagram is drawn for events A and B which are mutually exclusive, which f the folloiwng would always be true of A and B.

Choose an answer

Theire parts of the rectangle will overlap

Their parts fo the rectangle will be equal in area

Their parts of the rectangle will not overlap

None of these

The probability of an impossible event is.

Choose an answer

Positive

Zero

Negative

1

For discrete random variable 'X' the expectation of X I-e E(x) is equal to:

Choose an answer

Σp(x)

Σxp(x)

Σx²p(x)

One

If x is a random variable with E(x) = 5 then E(3x - 2) =

Choose an answer

0

1

13

All of them

The numbered balls are paced in an urn, Numbers 1- 4 are red and numbers 5 -10 are blue. the probability that a ball drawn at random from the run is blue is.

Choose an answer

0.1

0.4

0.6

1.0

Hourly temperature recorded by weather brave is the example of:

Choose an answer

Discrete variable

Continuous variable

Qualitative

Both A and B

When two coins are tossed simultaneously, P (one head ) is.

Choose an answer

1/2

1/4

3/4

1.0

Which one is not an example of random experiments.

Choose an answer

A coin is tossed and the outcome is either a head or a tail

A six sided aid is rolled

All medical insurance clams received by a company in a given year.

Some one of person will be admitted to a hospital emergency room during any hour.

More Classes

Other Links

Statistics Ics Part 1 Chapter 7 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