A box contains 1 red and 3 identical white ba | vedclass

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

Question

(B) The box contains $1$ red ball $(R)$ and $3$ identical white balls $(W)$.Since the balls are drawn without replacement,the first ball can be red or

Vedclass · Accepted Answer

$S = \{ RW, WR, WW \}$

Vedclass · Answer

(B) The box contains $1$ red ball $(R)$ and $3$ identical white balls $(W)$.Since the balls are drawn without replacement,the first ball can be red or white.If the first ball is red,the second must be white (as there is only $1$ red ball).If the first ball is white,the second can be red or white.Thus,the possible outcomes are:$1$. First is red,second is white: $(R, W)$$2$. First is white,second is red: $(W, R)$$3$. First is white,second is white: $(W, W)$Therefore,the sample space is $S = \{ RW, WR, WW \}$.

$A$ box contains $1$ red and $3$ identical white balls. Two balls are drawn at random in succession without replacement. Write the sample space for this experiment.

Similar Questions

If one ticket is selected at random from $30$ tickets,each with a distinct number from $1$ to $30$,then the probability that the number on the selected ticket is a multiple of $3$ or $5$ is

$A$ six-faced unbiased die is thrown twice and the sum of the numbers appearing on the upper face is observed to be $7$. The probability that the number $3$ has appeared at least once is:

The chance of throwing at least $9$ in a single throw with two dice is:

Let $S$ be the sample space of the random experiment of throwing simultaneously two unbiased dice and $E_k = \{(a, b) \in S : ab = k\}$. If $p_k = P(E_k)$, then which of the following is correct?

Three dice are thrown simultaneously. What is the probability of obtaining a total of $17$ or $18$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module