I need a tip to solve that mission

Hi everyone,

I'm just testing and programming for hours and I don't find a solution, which is both efficient and precise :/

At the moment I've got two approaches:

-> SOLUTION BY BRUTE-FORCE:

result = 0
rolls = int(1e8)
for i in range(rolls):
    roll = [randint(1,6) for x in range(dice_number)]
    if sum(roll) == target:
        result += 1
return round( result/rolls, 4)

-> SOLUTION BY CALCULATING THE PRECISE RESULT:

dice = [x for x in range(1,sides+1)]
candidates = [p for p in product(dice, repeat=dice_number) if sum(p) == target]
return round(len(candidates) / (sides**dice_number), 4)

Pls, could you give me a hint to solve that?

Thanks in advance, Agrigor