How to do it...

The following code block draws a scatter plot that depicts the relationship between the age and the weight of people:

1. Set the figure size (width and height) to (10, 6) inches:

plt.figure(figsize=(10,6))

2. Read age and weight data from an Excel file:

age_weight = pd.read_excel('scatter_ex.xlsx', 'age_weight')
x = age_weight['age']
y = age_weight['weight']

3. Plot the scatter plot:

plt.scatter(x, y)

4. Set x and y axis labels:

plt.xlabel('Age')
plt.ylabel('Weight)

5. Display the graph:

plt.show()