Write a function that determines standart deviation of float array. The function takes dataset as a float array parameter!! And it also return result as a float. (Clue: calculate average first) Definations: σ= N


1


​


∑ i=1


N


​


(x i


​


− x


ˉ


)


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σ= standard deviation xi= each value of dataset x


ˉ


(with a bar over it) = the arithmetic mean ot the data (This symbol will be indicated as average of dataset) N= the total number of data points (if you need square root of some number you can e sqrt function in math.h library. age example: a=sqrt(b) ; which means "a" is equal to square root of "b")