A coin is tossed 4 times. The probability that at least one head turns up, is a. `1/(16)` b. `2/(16)` c. `(14)/(16)` d. `(15)/(16)`

Explanation

The probability of getting head and tail in one toss is `1/2`

P(atleast one H) ` = 1 –P`(no head in four rows)

`=1-P`(four tails)

`=1-(1/2)^4 = 1 – 1/16 = 15/16`

`therefore` the correct answer is option `D`