# -*- coding: utf-8 -*-
"""
Created on Fri Nov 12 14:20:42 2021

@author: Sim
"""
import numpy as np

ht2 = [65.75, 63.78, 62.20, 64.96, 62.99, 63.78, 63.78, 
       65.75, 61.42, 61.81]
wt2 = [149.9, 108.0, 110.2, 123.5, 114.6, 114.6, 110.2, 
       134.5,  97.0, 121.3]
cov1 = np.cov(ht2, wt2)
print(cov1)

height = np.array([167, 162, 158, 165, 160, 162, 162, 167, 156, 157])
weight = np.array([68, 49, 50, 56, 52, 52, 50, 61, 44, 55])

cov2 = np.cov(height, weight)
print(cov2)

cov3 = 0.393701 * 2.204623 * cov2[0,1]
print(cov3)