Answer:
def sum_values(mylist):
sumSomeNumbers = mylist[9]+mylist[8]+mylist[11]
print(sumSomeNumbers)
Explanation:
Using python programming language;
A function is created called sum_values that accepts one parameter
Withing the function body, a variable called sumSomeNumbers is created to hold the sum of the elements at index 9,8 and 11
Finally a print Statement is used to output sumSomeNumbers
When the function is called It is passed a list as argument and it will display the sum of the three numbers at that indices
for example:
lst = [23,3,4,5,6,63,2,3,5,6,5,5,7,89]
sum_values(lst)
Outputs 16