Question # 1

When a pair of dice is rolled, the sum of upperemost dots vary from.

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0 to 10

1 to 11

2 to 19

2 to 12

F(y₁) ≤ F(y₂) if

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y₁= y₂

Y₁>y₂

y₁≤y₂

y≥1/2

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4/10

2/10

1/10

0

If x and y are independent random variables, then E(xy)

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E(xy)

xE(y)

E(x)

E(x)E(y)

Why are the outcomes of a coin tossing mutually exclusive.

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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

The simple probability of occurrence of an event in called the.

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Joint probability

Conditional probability

Marginal probability

Subjective probability

If x and y are independent random variables, E(xy)

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E(XY)

xE(y)

E(XY)

E(X) . E(Y)

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

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

The probability of drawan any one spade card is.

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1/32

1/18

1/4

4/13

The simplest form of the continuous distribution is the.

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Skewed distribution

Kurtic distribution

Binomial distribution

Uniform distribution

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

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One

Zero

Between 0 and 1

More than one

the term 'event' is used for.

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Time

Subaet of the sample space

Total number of outcomes

Probability

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

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1/2

1/4

3/4

None of these

If y =-7x then E(y) = ...............

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E(x)

-7X

-7E(X)

Zero

Waht is the probability that a ball drawn at random from the bag is.

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0.1

0.4

1.0

Cannot be determined from given information

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

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Equal

Discrete

Continuous

Always greater then oen

Hourly temperature recorded by weather brave is the example of:

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Discrete variable

Continuous variable

Qualitative

Both A and B

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Statistics Ics Part 1 Chapter 7 Online Test MCQs With Answers

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