three fair coins are tossed simultaneously . Find the propability of
getting atlest one head .

Options

A. `7/8`
B. `1/8`
C. `3/4`
D. `1/4`

Answer

To solve the problem of finding the probability of getting at least one head when tossing three fair coins, we can follow these steps:

### Step 1: Determine the Sample Space
When tossing three coins, each coin has two possible outcomes: Heads (H) or Tails (T). Therefore, the total number of outcomes when tossing three coins can be calculated as:
\[ \text{Total Outcomes} = 2^n \]
where \( n \) is the number of coins. Here, \( n = 3 \):
\[ \text{Total Outcomes} = 2^3 = 8 \]

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