Question # 1

If the random variable x denotes the number of heads of when three distinct coins are tossed k the X assumes values.

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0,1,2,3

1,3,3,1

1,2,3

1,1,1,1

When two dice are rolled, the maximum totla on the two faces of dice will be.

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2

6

12

36

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.

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0.1

0.4

0.6

1.0

When three coins are tossed simulatneously, P(3 heads) is.

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3/8

1/2

1/8

1/4

The Area of trapezoid is equal to:

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sum of paralled sides x base

sum of paralled sides x base/2

2 x base x sum of paralled side

Sum of paralled sides x base/4

What is the probability that a value chosen at random from a particular population is larger than the median of the popultion.

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0.25

0.5

1.0

0.67

Var (B/aX) =?

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1/aVar(X)

b²/a² Var(X)

b²/a Var(X)

None of these

The probability of red card out of 52 cards is.

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1/4

1/2

4/52

zero

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.

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

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Equal

Discrete

Continuous

Always greater then oen

E(x - μ) is equal to:

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E(x)

zero

μ

X - μ

The probability of drawing a king of spade from a pack of 52 cards is.

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1/4

1/13

1/26

1/52

E(y-μ) is equal to

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E(y)

μ

zero

y-μ

The simplest form of the continues distribution is the

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Skewed distribution

Kurtic distribution

Binomial distribution

Uniform distribution

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

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0

1

13

All of them

A random variable is also called.

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Chance variable

Stochastic variable

Discrete variable

Both A and B

Var (KY) = ......................

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KY

K² Var(Y)

K²Var (Y)

None of these

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4/10

2/10

1/10

0

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Statistics Ics Part 1 Chapter 7 Online Test MCQs With Answers

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