Halfway through the season, a soccer player has made 12 penalty kicks in 18 attempts. Based on her performance to date, what is the relative frequency probability that she will make her next penalty kick? Write your answer as a fraction in simplest form.

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18