Part I: Data Structures and Aggregation

Data Preparation:

Create a dictionary student$\_$scores where keys are student names $($strings$)$ and values are their test scores $($lists of integers$).$ Here's the data you should use:

student$\_$scores $=\{$

"Alice": $[85,90,78],$

"Bob": $[70,88,92],$

"Charlie": $[80,85,85],$

"David": $[95,100,98]$

$\}$

$2\mathrm{.}1$ Calculate Averages

Write a function calculate$\_$averages that takes in the student$\_$scores dictionary and returns a new dictionary where each student$$s name is mapped to their average score.