matlab

Problem #1: (30%) 1. (45%) The annual salary of n families varies between $40K and $150K. Perform the follow: a. (15%) Accept the number n from the user and verify it is between 20 and 30. Once the input is validated and define an appropriate array to accommodate the salaries b. (5%) Fill the array with a random numbers in the range of salaries given above. Print out the array, c. (15%) Find the maximum, the minimum and the average salary and print them the results. Print out the results. DO NOT USE BUILT IN FUNCTIONS d. (10%) Find how many families have salary above the average salary and print it out. Make sure that the file opened OK, all data was recorded and that the file was closed OK