lab9a.py

def main():
  infile = open("input.txt", 'r')
  outfile = open("output.txt", 'w')
  data = infile.readlines()

  # add a variable, name it count to keep track of how many numbers in the input file since it is used for average the total
  count = 0
  # add code here to loop through the numbers
  numbers = list(map(float, data)) # far easier shorthand for a for loop that converts all data elements to floats
  count = len(numbers) # get count from for loop
  # add code here to sum up all the numbers
  num_sum = sum(numbers)
  # add code here to calculate the average of the numbers
  num_avg = num_sum / count



  #add code here to print the average of all numbers in the output file, format the average to 2 decimal points.
  print(f"The sum of all numbers is: {num_sum:.02f}", file=outfile)
  print(f"The average of all numbers is: {num_avg:.02f}", file=outfile)

  print("The sum and average of the numbers are in output.txt")

  infile.close()
  outfile.close()
main()

lab9b.py

import numpy

a = numpy.loadtxt("MyData.csv", skiprows=5, delimiter=',')
print(a)
numpy.savetxt('output.txt', a, fmt="%.02f", delimiter=',')