计算用户输入的数量和这些输入的平均值

Question

Trying to complete python homework task, part of the program needs to calculate how many BMIs its calculated and the average value of these BMIs after the user has written 'n'. Help would be appreciated, this is what I have now.

y = True

while y:   

weight = float(input("Enter weight in kg:"))
height = float(input("Enter height in m:"))
bmi = weight/(height**2)

if bmi <18:
    print("Your BMI is", bmi, "\nIt indicates you are underweight")
elif bmi >=18 and bmi <=25:
    print("Your BMI is", bmi, "\nIt indicates you are within normal bounds")
elif bmi >25:
    print("Your BMI is", bmi, "\nIt indicates you are overweight")

again = str(input("Another BMI? y/n:"))
if again == "n":
    y = False

Answer 1

You need to create an empty list bmi_records before going to while loop. Then just append new BMIs to the bmi_records list.

bmi_records = []
while ....
    bmi = ...
    bmi_records.append(bmi)
    ....

print(f'Average of {len(bmi_records)} BMIs entered: {sum(bmi_records)/len(bmi_records):.1f}')