Six coins are tossed simultaneously. Find the probability of getting
(i) `3` heads 
(ii) no heads
(iii) at least one head

Explanation

To solve the problem of finding the probability of getting 3 heads, no heads, and at least one head when tossing six coins simultaneously, we can use the binomial distribution formula.

### Step-by-Step Solution:

1. **Understanding the Experiment**:
- When tossing a coin, there are two possible outcomes: heads (H) or tails (T).
- The probability of getting heads (p) = 1/2 and the probability of getting tails (q) = 1/2.

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