MAth Ch 7 Permutation, Combination and Probability

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Non occurrence of an event E is denoted by:

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If ? is an impossible event ,then

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If ? is a certain event , then

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If an event always occurs , then it is called:

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In a permutation ??? ?? ?(?, ?) , it is always true that

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If ?(?) =?/??, ?(?) = ???? , ?(?) =

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Sample space for tossing a coin is:

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. The number of ways for sitting 4 persons in a train on a straight sofa is:

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A coin is tossed 5 times, then ?(?) is equal to:

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A die is rolled , the probability of getting 3 or 5 is:

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Let ? = {?, ?, ?, … , ??} the probability that a number is divided by 4 is :

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17. Two teams ? and ? are playing a match, the probability that team ? does not lose is:(a) 1/3(b) 2/3(c) 1 (d) 0

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16. Four persons wants to sit in a circular sofa, the total ways are:

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A card is drawn from a deck of 52 playing cards. The probability of card that it is an ace card is:

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For independent events ?(? ∩ ?) = (a) (b) ?(?) − ?(?) (c) ✔ ?(?). ?(?) (d) ?(?) ?(?)

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Probability of non-occurrence of an event E is equal to :

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If ( ? ??) = ( ? ? ) then the value of ?,

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If an event ? can occur in ? ways and ? can occur ? ways , then number of ways that both events occur is:

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?! ?! =

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???=

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How many signals can be given by 5 flags of different colors , using 3 at a time

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If ? is negative then ?! is

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The number of diagonals in 10-sided figure is

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If ???=30 then ? =

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????=

Your score is

The average score is 61%

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Ali Durrani