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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