QUESTIONS 1) Answer the following questions: A) Write the following requested commands (codes) regarding the defined list int list =[12,4,4,55,65,77,34,23,17] ;(25 %) a) The command to be printed on the screen; b) The command required to sort the list in increasing order (smallest to largest); c) The command required for reversal; d) The command required to add 10 element to the second index; e) The command required to print the length of the list; B) Write code using a method that computes the mean and variance of the following data data =[1,5,6,3,12,3] (write the method without using the library function mean and var o the NumPy module); (20s) C) Write a functional code that takes two inputs " x " and " y " as integer numbers and comput and prints their addition, subtraction, and multiplication as the outputs of the defined functions. (15s)

## Step 1: Understanding the Commands for List Operations### We need to perform several operations on a list defined as `list = [12, 4, 55, 65, 77, 34, 23, 17]`. The tasks include printing the list, sorting it, reversing it, adding an element at a specific index, and printing its length.- **a) Print the list:** Use the command `print(list)` to display the list.- **b) Sort the list in increasing order:** Use the command `list.sort()` to sort the list from smallest to largest.- **c) Reverse the list:** Use the command `list.reverse()` to reverse the order of elements in the list.- **d) Add 10 to the second index:** Use the command `list.insert(2, 10)` to add the number 10 at the second index (indexing starts from 0).- **e) Print the length of the list:** Use the command `print(len(list))` to print the number of elements in the list.## Step 2: Calculating Mean and Variance Without Libraries### We need to write code to compute the mean and variance of the data set `data = [1, 5, 6, 3, 12, 3]` without using NumPy functions.- **Mean Calculation:** - Sum all elements in the list: . - Divide by the number of elements: . - **Variance Calculation:** - Compute the squared differences from the mean: which are . - Sum these squared differences: . - Divide by the number of elements: .## Step 3: Writing Functional Code for Arithmetic Operations### Write a function that takes two integers `x` and `y`, and computes their addition, subtraction, and multiplication.```pythondef arithmetic_operations(x, y): addition = x + y subtraction = x - y multiplication = x * y return addition, subtraction, multiplication# Example usage:x = 5y = 3add, sub, mul = arithmetic_operations(x, y)print("Addition:", add)print("Subtraction:", sub)print("Multiplication:", mul)```