Question # 1

If E a and impossible event, then P(E) is.

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0

0.5

1

Impossible

ⁿC_r is calculated by formula

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⁴C₅= ....................

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5

1/5

0

None of these

"P_r can be solved by the formula.

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N!/ r!(n-r)!

(n-r)!/r!

n!(n-r!)

n!(n-r)!/r!

^AP₃is equal to.

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3!

4!

5!

6!

The number of ways in which a person enters by oe door and leaves by a different door in a room with three doors is.

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6

9

5

None of these

If the occurance of one event is not effected by the occurance of other than these events are called

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Dependent

Independent

Simple

Compound events

A coin is tossed 3 times then, then number of sample points in the sample space is:

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2³

3

8

Both A & C

The number of terms in the expansion of the binomial (p+q)ⁿ is.

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n

n-1

n+1

2n

If an event consist of more than one sample point it is called

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Simple event

Compound event

Exhaustive event

Likely event

P (A/B) can be evaluated by formula

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P(A∩B)/P(B)

P(A∪B). P(B)

(A∪B)/P(B)

P(A∩B)/P(A)

When each outcome of a sample is as equally likely to occur as any other, the out come are called.

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Mutually exclusive

Equally likely

Exhaustive

Not mutually

Probability of an event cannot be

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Negative

Positive

Zero

One

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