An urn contains 25 balls numbered 1 to 25. Su | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The urn contains $25$ balls numbered $1$ to $25$. An odd number is considered a 'success'. The odd numbers between $1$ and $25$ are $1, 3, 5, 7, 9

Vedclass · Accepted Answer

$0$

Vedclass · Answer

(D) The urn contains $25$ balls numbered $1$ to $25$. An odd number is considered a 'success'. The odd numbers between $1$ and $25$ are $1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25$. There are $13$ odd numbers. Probability of success $(p)$ = $\frac{13}{25}$. Probability of failure $(q)$ = $1 - p = 1 - \frac{13}{25} = \frac{12}{25}$. We are drawing $2$ balls with replacement. Since we are only performing $2$ trials,it is impossible to get $3$ successes. Therefore,the probability of getting $3$ successes is $0$.

An urn contains $25$ balls numbered $1$ to $25$. Suppose an odd number is considered a 'success'. $2$ balls are drawn from the urn with replacement. Find the probability of getting $3$ successes.

Similar Questions

There are two children in a family. The probability that both of them are boys is

$A$ locker can be opened by dialing a fixed three-digit code (between $000$ and $999$). $A$ stranger who does not know the code tries to open the locker by dialing three digits at random. The probability that the stranger succeeds at the $k^{th}$ trial is

In a lottery,there were $90$ tickets numbered $1$ to $90$. Five tickets were drawn at random. What is the probability that two of the tickets drawn are numbered $15$ and $89$?

There are $n$ letters and $n$ addressed envelopes. The probability that all the letters are not kept in the right envelope,is

What is the probability of getting a total of less than $12$ in the throw of two dice?

Vedclass Test Series

Exam Paper Generator

Online Exam Module