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<?php $start = 0; $top = 10000; $ar = array(); for ($x=1;$x<=10000;$x++) { $val = mt_rand($start, $top) / $top; $ar[] = $val; } $mean = array_sum($ar) / sizeof($ar); $devs = array(); foreach($ar as $num) { $devs[] = pow($num - $mean, 2); } $standard_deviation = sqrt(array_sum($devs) / sizeof($devs)); echo 'Max: ' . max($ar); echo chr(10); echo 'Min: ' . min($ar); echo chr(10); echo 'Average: ' . $mean; echo chr(10); echo 'Deviation: ' . $standard_deviation; ?>
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