Suppose you want to create a stacked bar chart showing the categories with your expenses. Type in the missing line of code for the third bar category, so the resulting bar chart is as follows:
import matplotlib.pyplot as plt
import numpy as np
months = ['January', 'February', 'March']
transport = np.array([760, 575, 955])
food = np.array([597, 710, 675])
healthcare = np.array([395, 210, 450])
plt.bar(months, transport, width=0.9, label='Transport')
plt.bar(months, food, width=0.9, label='Food', bottom=transport)
# YOUR CODE HERE #
plt.xlabel("Period", fontsize=12)
plt.ylabel("Amount ($) ", fontsize=12)
plt.legend()
plt.title("My monthly expenses", fontsize=14)
plt.show()