# numpy.var() in Python 
 # Python Program illustrating 
# numpy.var() method 
import numpy as np 
      
# 1D array 
arr = [20, 2, 7, 1, 34] 
  
print("arr : ", arr) 
print("var of arr : ", np.var(arr)) 
  
print("\nvar of arr : ", np.var(arr, dtype = np.float32)) 
print("\nvar of arr : ", np.var(arr, dtype = np.float64)) 