Challenge: Matrix Row Means

You are given three different data objects: a matrix of student scores, a list of monthly sales for stores, and a vector of product prices.

• Use the apply function to find the highest score for each student (each row in the matrix).
• Use the lapply function to calculate the total sales for each store in the sales_list.
• Use the sapply function to round each price in prices to the nearest integer, and store the result in a variable called rounded_prices.

Store your results in variables named:

• student_highest_scores for the highest scores per student;
• store_total_sales for the total sales per store;
• rounded_prices for the rounded product prices.