# Eight coins are tossed together.The probability of getting exactly 3 heads is Option 1) Option 2) Option 3) Option 4)

Probability of occurrence of an event -

Let S be the sample space then the probability of occurrence of an event E is denoted by P(E) and it is defined as

- wherein

Where n repeated experiment and E occurs r times.

Probability of getting exactly 2 heads is

Option 1)

This option is incorrect

Option 2)

This option is correct

Option 3)

This option is incorrect

Option 4)

This option is incorrect

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