#2 Make the sum of two vector b[i,j] = a[i,j] + b[i,j]
#3 Program that completes a full-size vector with random numbers of 0 At 100. the program must calculate: the average of the data, the standard deviation, the variance
#4 A matrix has a saddle point if any position in the matrix is the least of his row, and at the same time the largest of his column. Write a program that fills a matrix with real random numbers from 0 to 999 and that determines if the matrix has points chair.
#5 It has a vector of one hundred elements that represent qualifications of five subjects of 20 students. From 1 to 5 are the grades of the first student; from 6 to 10, are the second; and so on. You want a program that reads these qualifications and calculates the average of each student and that he keeps it in a second vector that will have as Only the averages of the 20 students.