Dan massia A, consisting of 12 numbers, fill the array with random numbers in the range from 0 to 100.

Dan massia A, consisting of 12 numbers, fill the array with random numbers in the range from 0 to 100. It is required to calculate the arithmetic mean of the array elements. print the array and the arithmetic mean to the screen.

var a: array [1..12] of single; S: single; M: single; i: integer; k: integer; begin randomize; for i: = 1 to 12 do a [i]: = random * 100; S: = 0; k: = 0; for i: = 1 to 12 do begin S: = S + a [i]; k: = k + 1; end; M: = S / k; for i: = 1 to 12 do begin write (a [i], ‘,’); end; writeln; writeln (‘Average =’, M); end. Explanation. Array “a []” and variables “S” and “M” of the real type “single”. Depending on the compiler, this can be changed to “real”. The call to randomize ensures that the random function produces a random number. The “random” function without parameters returns a random real number from “0” to “1”. Multiplying it by “100”, we get a random number from 0 to 100. The “S” variable accumulates the sum of the array elements, and the “k” variable contains their number. The variable was introduced for educational purposes, and in this program “k” is always equal to “12”, in principle, you can refuse it. The arithmetic mean is stored in the “M” variable.