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(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

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

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(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.

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