I am trying to compute the probability of rolling a dice n number of times and finding the average.Its basically a Monte Carlo problem. I am new to coding so if someone can help I would really appreciate it.
import random
import sys
num = int(sys.argv[1])
roll =random.randint(1,6)
sum=0
for roll in range(0,num):
sum = sum + int(input())
average = sum / num
print('the average is: ',average)
There are a bunch of issues here.
You should only use the input() function when you want to prompt the user for input. Here that is not the case.
You want the print statement outside of the loop, not inside the loop.
[A minor stylistic point] You should not name a variable "sum", since that is a built-in function name, and it's not good form. You can do it, but if afterwards you want to use the actual sum() function, you'll run into problems.
I think this is what you intended:
import random
import sys
num_rolls = int(sys.argv[1])
rolls = [random.randint(1, 6) for i in range(num_rolls)]
print('the average is: {}'.format(sum(rolls) / num_rolls))
sum(rolls) adds up all the items in rolls. Then sum(rolls) / num_rolls divides the sum by the number of objects, calculating the average. Then the format() function basically plugs the result into the curly braces (due to how formatted strings work).