wht does **'at most one head** or **at most one tail'** means and '** at least one head but at most one tail** or **at least one head but at most two heads**' means...plz..ans.fast

**at most one head means**either we get 1 time head and 4 times tail or we get 5 times tails only.

at most one head is either one head or no head.

**at most one tail**means either we get 1 time tail out of n times or we get no tail i.e. all are heads.

**at least one head but at most one tail:**

if we are tossing a coin 5 times , at most one tail i.e. tail occurs either 1 time or it does not occur

i.e. out of 5 times either 4 times head and 1 time tail or head occurs all the 5 times.

hope this helps you

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