The probability of getting exactly 2 hea...

The probability of getting exactly 2 heads when tossing 7 coins is

`21//128`

`15//16`

`30//16`

`1//2`

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Assertion (A) : The probability of getting exactly 2 heads in tossing a coind thrice is ((1)/(2))^(3) Reason (R ) : The probability of getting exactly r heads in tossing n coins is (.^(n)C_(r ))/(2^(n)) . The correct answer is

The probability of getting atmost 4 heads when tossing 7 coins is

The probability of getting two heads when tossing five coins is

The probability of getting atleast two heads, when tossing a coin three times is……….

the probabilities of getting 3 heads when tossing 7 coins is

What is the probability of getting exactly two heads, when three coins tossed simultaneously?

The probability of getting exactly 2 tails in 6 tosses of a fair coin is

A box contains N coins, m of which are fair and the rest are biased. The probability of getting a head when a fair coin is tossed is 1/2, while it is 2/3 when a biased coin is tossed. A coin is drawn from the box at random and is tossed twice. The first time it shows head and the second time it shows tail. What is the probability that the coin drawn is fair ?

Find the probability of getting atleast one head when 5 coins are tossed

DIPTI PUBLICATION ( AP EAMET)-THEORETICAL DISTRIBUTIONS-EXERCISE 1 (CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVE 1,2,3 OR 4 GIVEN )

A box contains 6 tickets. Two of the tickets carry a price of Rs. 5//-...
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