An experiment consists of three throws of coin and success means two heads. The probability of no success, if experiment is repeated three times, is

\frac{1}{25}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{2}{5}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{24}{25}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D None
$P (2 h e a d s) = \frac{3 C_{2}}{2^{3}} = \frac{3}{8}$ therefore P( no success in 3 trials) $= {(\frac{1 - 3}{8})}^{3} = {(\frac{5}{8})}^{3}$

Suggest Corrections

Similar questions

Q. In an experiment success is twice that of failure. If the experiment is repeated

6

times, the probability that atleast

4

times success is :

Q. A fair coin is tossed three times in succession. If the first toss produces a head, then the probability of getting exactly two heads in three tosses is

Q. The probability of success is p in one trial and the experiment be repeated n times. If the ratio of the probability of exactly r success to the probability of exactly r failures is independent of n and r, then p =

Q. Find the chance of throwing head and tail alternately in three successive tossing of coin.

An experiment consists of tossing a coin and then throwing it second times if a head occurs. If a tail occurs on the first toss, then a die is rolled once. Find the sample space.

Join BYJU'S Learning Program

An experiment consists of three throws of coin and success means two heads. The probability of no success, if experiment is repeated three times, is

The correct option is D NoneP(2 heads)=3C223=38 therefore P( no success in 3 trials) =(1−38)3=(58)3

The correct option is D None
$P (2 h e a d s) = \frac{3 C_{2}}{2^{3}} = \frac{3}{8}$ therefore P( no success in 3 trials) $= {(\frac{1 - 3}{8})}^{3} = {(\frac{5}{8})}^{3}$