Home
Class 12
MATHS
A fair coin is tossed 9 times the probab...

A fair coin is tossed `9` times the probability that at least `5` consecutive heads occurs is

A

`5/64`

B

`3/32`

C

`""^(9)C_(5)(1/2)^(9)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B


Required probability `(1/2)^(5)+(1/2)^(6)+(1/2)^(6)+(1/2)^(6)+(1/2)^(6)=3/32`
Promotional Banner

Similar Questions

Explore conceptually related problems

A coin is tossed 7 times. Then the probability that at least 4 consective heads apear is

An unbiased coin is tossed 12 times The probability that at least 7 consecutive heads show up is K/256 then K=

If an unbiased coin is tossed 10 xx then the probability that no two consecutive heads occurs is

A coin is tossed five times. Then the probability that at least one tail occurs is

A coin is tossed five times. Then the probability that at least one tail occurs is

A coin is tossed 15 xx,then find the probability that exactly 9 consecutive heads appears,is

A fair coin is tossed 10 times. If the probability that heads never occur on consecutive tosses be (m)/(n) (where m, n are coprime and m, n in N ), then the value of (n-7m) equals to :

A coin is tossed 6 times . Find the probability of getting at least 3 heads .