Take number input from user and calculate average

x = int(input("how many numbers?:      "))

list = []
for num in range(0,x):
    y = float(input("enter number: "))
    list.append(y)


sum = 0
a = 0
for num1 in list:
    sum = sum + list[a]
    a = a+1

print("sum of the numbers is: ",sum)
avg = sum/x
print("Average is:  ",avg)