Answer:
There are 1680 different ways four letters can be arranged.
Since you are using the permutation formula, plug in the values and solve.
P(n,r) = P(8,4)
= 8! / (8−4)!
= 1680
Spelling out LION is only one of the 1680 possible outcomes. Therefore the fraction 1/1680 would represent this probability.
P(LION) = 1/1680
