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Examples:Input: array (2, 3, 5, 6, 7) Output: 1.5620499351813 Input: array (1, 2, 3, 4, 5) Output: 1The following problem can be solved with the built-in functions PHP . The built-in functions used to solve the above problem are as follows:
// function for calculating the standard deviation // array elements function Stand_Deviation ( $arr ) { $num_of_elements = count ( $arr ); $variance = 0.0; // calculate the average using the array_sum() method $average = array_sum ( $arr ) / $num_of_elements ; foreach ( $arr as $i ) { // sum of the squared differences between // all numbers and means. $variance + = pow (( $i - $average ), 2); } return (float ) sqrt ( $variance / $num_of_elements ); } // input array $arr = array (2, 3, 5, 6, 7); print_r (Stand_Deviation ( $arr ));
?> Output:1.8547236990991
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Angelo Williams
San Francisco | 2023-02-07
I was preparing for my coding interview, thanks for clarifying this - PHP program for finding the standard deviation of an array in Python is not the simplest one. Will get back tomorrow with feedback
Angelo Galleotti
Moscow | 2023-02-07
Maybe there are another answers? What PHP program for finding the standard deviation of an array exactly means?. Will get back tomorrow with feedback
Schneider Lehnman
New York | 2023-02-07
Maybe there are another answers? What PHP program for finding the standard deviation of an array exactly means?. I just hope that will not emerge anymore
