Question

A die is thrown four times. The probability of getting perfect square in at least one throw is ______.

विकल्प

• `16/81`

• `65/81`

• `23/81`

• `58/81`

Answer 1

A die is thrown four times. The probability of getting perfect square in at least one throw is `underlinebb(65/81)`.

Explanation:

P (getting perfect square in atleast one throw)= 1 – P (not getting perfect square in any throw)

= `1 - (4/6 xx 4/6 xx 4/6 xx 4/6)`

= `1 - (2/3)^4`

= `1 - 16/81`

= `65/81`