Suppose three coins are tossed simultaneously. If $X$ denotes the number of heads,then the probability distribution of $X$ is:
- A
$X=x$ $0$ $1$ $2$ $3$ $P(X=x)$ $\frac{2}{8}$ $\frac{2}{8}$ $\frac{3}{8}$ $\frac{1}{8}$ - B
$X=x$ $0$ $1$ $2$ $3$ $P(X=x)$ $\frac{1}{8}$ $\frac{3}{8}$ $\frac{3}{8}$ $\frac{1}{8}$ - C
$X=x$ $1$ $2$ $3$ $P(X=x)$ $\frac{3}{8}$ $\frac{3}{8}$ $\frac{2}{8}$ - D
$X=x$ $0$ $1$ $2$ $3$ $P(X=x)$ $\frac{1}{8}$ $\frac{1}{8}$ $\frac{3}{8}$ $\frac{3}{8}$
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