human
Average value of set bit count in given Binary string after performing all possible choices of K operations | Function to calculate the average number of Set bits after after given operations.
Stores the average number of set bits after current operation.
Stores the average number of set bits after current operation.
Iterate through the array arr [ ] and update the values of p and q.
Store the value of p and q of the previous state before their updation.
Update average number of set bits after performing the ith operation.
Update average number of off bits after performing the ith operation.
Return Answer.
Driver Code"
How can the above be solved in Python?

What is a code to average value of set bit count in given Binary string after performing all possible choices of K operations and the other steps required?
assistant
#Here is code to average value of set bit count in given Binary string after performing all possible choices of K operations and the other steps required.
 def averageSetBits ( N , K , arr ) :
	p = N
	q = 0
	for i in range ( K ) :
		_p = p
		_q = q
		p = _p - _p * arr [ i ] / N + _q * arr [ i ] / N
		q = _q - _q * arr [ i ] / N + _p * arr [ i ] / N
	return p
if __name__ == " _ _ main _ _ " :
	N = 5
	arr = [ 1 , 2 , 3 ]
	K = len ( arr )
	print ( " % .2f " % averageSetBits ( N , K , arr ) )