dict = { 'a': [1,2,3,4] 'b': [3,6,7,8] 'c': [9,1,9,1] { Iterate over the above dictionary 1- display letter and highest value 2- display letter and mean of values in corresponding list 3- display the...

dict = {
   'a': [1,2,3,4]
   'b': [3,6,7,8]
   'c': [9,1,9,1]
{

Iterate over the above dictionary
1- display letter and highest value
2- display letter and mean of values in corresponding list
3- display the letter that the highest value among all lists

Example output:
highest value in each letters list
a : 4
b : 8
c : 9

Mean value for each letter:
a : 2.5
b : 6
c : 5

The highest value
c : 9