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The probability of getting two heads whe...

The probability of getting two heads when tossing five coins is

A

`1//2`

B

`3//8`

C

`5//16`

D

`7//128`

Text Solution

Verified by Experts

The correct Answer is:
C
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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 ?

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

Knowledge Check

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

    A
    `57//64`
    B
    `99//128`
    C
    `5//16`
    D
    `1//2`

  • the probabilities of getting 3 heads when tossing 7 coins is

    A
    21/128
    B
    35/128
    C
    45/128
    D
    23/128

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

    A
    `21//128`
    B
    `15//16`
    C
    `30//16`
    D
    `1//2`

    • Similar Questions

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    The probability of getting at least two heads when tossing a coin three times is

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

    The probability of getting a head when a coin is tossed once is…………..

    The probability of getting two tails when two coins are tossed is………….

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