write a program that reads 30 grades from a file(grades.txt) the program that uses three functions to calculate the average,the standard deviation and grade range frequency for 30 grades

the grades are [57,94,81,77,66,97,62,86,75,67,91,78,61,82,74,72,70,88,66,75,55,66,58,73,79,51,63,77,52,84]

grade range frequency =

[50-59 =. 7,

60-69= 6,

70-79= 2,

80-89= 10,

90-99= 5]

it has to be in python language and do i just open a new file on jgrasp as .txt and put the grades or in excel form kindly elaborate how i am suppose to save the file thanks your help is much appreciated

S 101 - Quiz 15 Dr. H. Assalier Directions: This is NOT A group Quiz. It is an individual assignment. The due date for this Quiz: Monday (12/I/17) in class for sections 2,5 and 60 and Wednesday (12/13/17) in class for section 62. Bring a hardcopy of your program and a sample output to class on the due date. Problem: Write a program that reads 30 grades from a file (grades.txt). The program that uses three functions to calculate the average/mean, the standard deviation, and grade range frequency for the 30 grades, as shown below: mean - , standard deviation = E. (%, -- mean)" n-1 Average grade: 73.23 Standard deviation = 12.52 Grade-range frequency: 50-59 60-69 70-79 80-89 90-99 A BME CE DE Laval (Kwez SI 462133 263 21 2076667 31.2546 17.NET GO 2116 7.27 53 32106 TEE6714 18 12 N667 162891 1 NU67 ET12T123 7376667 139 522 9111 NEPIEEE861 847667221ai 1228 149 6544|| A 76E67 76 445 TOETSETESI 48 4 167 218 OS45| 661209 12126 1.2667 31211 IEDZ 1213 522105 S$ 15 maj 2012 0643 30ZREK COSGLE|| 19 5 76667 302548 22202 494 321 - 10203 104.121 378657 1618T8 RRRRRR AVG 10. 16567 115 SR12 4:27