Question

A museum worker randomly displays 6 historical writings in a row. What is the probability that she lines them up from the oldest to the most recent from left to right?

Answer 1

The probability is `1` in `720` or `1/720`.

Explanation:

There is only one combination in which she lines them all correctly in chronological order.

Hence, we have to find the number of possible outcomes,

`"Number of possible outcomes"=""_6P_6 =(6!)/((6-6)!)=720`

`"Probability"="number of favourable outcomes"/"number of possible outcomes"=1/720`