Question

A person tosses a coin 20 times. And how many ways can you get 20 tails

Answer 1

Given:

`Number\text{ of toss= 20}`

To Determine: The number of ways of getting 20 tails

Solution

For every toss, we can either get a head or a tail

For a toss of 20 times, we can either get head or tail in

`\begin{gathered} 2^(20)-times \\ =1048576-times \end{gathered}`

The number of ways of getting 20 tails is

`^(20)C_(20)-ways`
`^(20)C_(20)=(20!)/(20!(20-20)!)=(20!)/(20!0!)=1`

Hence, the number of ways of getting 20 tails from a person who tosses a coin twenty times is just ONE(1) WAY