input: Write a python function to compute the root mean square (RMS) of a list of numbers.
  assert computeRMS([3, 4, 5, 6, 7]) == 5.0990195135927845
  assert computeRMS([1, 2, 3, 4, 5]) == 3.3166247903554
  assert computeRMS([10, 10, 10]) == 10.0
output: def computeRMS(numbers):
      import math
      squared_sum = sum(x**2 for x in numbers)
      mean_squared = squared_sum / len(numbers)
      return math.sqrt(mean_squared)