please explain step by step. 
2problew1.cpp 3 Write a function stddev which takes a vector<float> and computes and returns the standard deviation. The standard deviation is defined as the sun, for each element v.at(i) of the vector s (v.at(i) – average)2 and then divide by v.size)-1 and take the square root: stddev-sart()7(v.sizel)) 9 10| #include <caath> 11 | #include <iostream> 121 #include <vector> 13 using nanespace std; 14 15 float average(vector<float> v); 16 float stddev(vector<float> v); 17 18
PayPal Gateway not configured
PayPal Gateway not configured