A marks list is available for a class of ten students. Design a program to output the mean mark for the class.
<?
// ten students all have marks
// for this solution, the marks are going to be from 0 (all wrong) to 10 (all correct)
$student_marks = array(3, 7, 2, 5, 10, 7, 9, 0, 2, 3);
// add up all the values in the arry
// then divide by the number of values in the array
// this solution would work for any number of students
$mean_mark = array_sum($student_marks) / count($student_marks);
// output the result
echo 'Mean mark: ' . $mean_mark;
?>
Which produces:
Mean mark: 4.8