Question # 1

F (+∞) is always equal to:

Choose an answer

0

Two

One

None of these

For a constant K ,the variance of K.

Choose an answer

Zero

A^-2

K

None of these

When two coins are tossed simulataneously the probability of at most one head is.

Choose an answer

1/2

1/4

3/4

None of these

The probability of continuous random variable at x = a is__________.

Choose an answer

One

Zero

Between

More then one

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

Choose an answer

Equal

Discrete

Continuous

Always greater then oen

If one event is unaffected by the outcome of another event, the two events are said to be

Choose an answer

Dependent

Independent

Mutually exclusive

Both b and c

Events with equal probabilities are called.

Choose an answer

Mutually exclusive events

Exhauative events

Eqauily likely events

Simple events

E(x - μ) is equal to:

Choose an answer

E(x)

zero

μ

X - μ

E(y-μ) is equal to

Choose an answer

E(y)

μ

zero

y-μ

Choose an answer

8

0

1/8

3

Var (3x+2)

Choose an answer

3Var(x) + 2

9Var(x) +2

Var (x) + 0

3Var (X)

Why are the outcomes of a coin tossing mutually exclusive.

Choose an answer

The outcome of any toss is not affected by teh outcome of those preceding it.

Both a head and a tail cannot turn up on any one toss

The probability of getting a head and the probability of getting a tail is the same.

All of these

For two independent random variables, Var(x) = 14 and Var(Y ) = 5, then var (X-y) is equal to.

Choose an answer

9

70

19

None of these

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.

Tossing two dice possble sampes are.

Choose an answer

2

6

12

36

A set of numerical values assigned to a sample space is called.

Choose an answer

Random sample

Random variable

Random numbers

Random experiment

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

Choose an answer

0

1

13

All of them

Which is the impossible event when a dice is rolled.

Choose an answer

5 or 6

6 or 7

2 or 3

1

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