MCQ
Three coins are tossed simultaneously. What is the probability of getting exactly two heads?
- A$\frac{1}{2}$
- B$\frac{1}{4}$
- ✓$\frac{3}{8}$
- D$\frac{3}{4}$
✓
Answer
Correct option: C.
$\frac{3}{8}$
When three coins are tossed the simultaneously the
outcomes are :
$\text{\{HHH, HHT, HTH, THT, HTT, TTH\}}$ and $\text{\{TTT\}}$
So, there are $8$ possible outcones.
$P($getting exactly two heads$)$
$=\frac{3}{8}$
outcomes are :
$\text{\{HHH, HHT, HTH, THT, HTT, TTH\}}$ and $\text{\{TTT\}}$
So, there are $8$ possible outcones.
$P($getting exactly two heads$)$
$=\frac{3}{8}$
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