how many ways can 4 students be seated in a row of 4 seats?

Explanation:

Step1: Identify the concept

This is a permutation problem. The number of permutations of (n) distinct objects taken (n) at a time is given by (n!). Here (n = 4) (4 students and 4 seats).

Step2: Calculate the factorial

The formula for (n!) is (n!=n\times(n - 1)\times\cdots\times1). For (n = 4), we have (4!=4\times3\times2\times1). [4\times3\times2\times1=24]

Answer:

24