English: Now, also for n numbers if thereby n numbers then we can write it as sigma x i by n what does this mean, this means I am taking what is xi, xi is each numbers, x1 is one number, x2 is another number, x3 is another number in that we are up to xn.
Telugu: దీని అర్థం ఏమిటి, xi అనేది సంఖ్య, x1 ఒక సంఖ్య, x2 మరొక సంఖ్య, x3,. . . . . . . మరొక సంఖ్య xn వరకు ఉన్నవి.