Basic scatter plot with plt.scatter in Matplotlib - Mini Project: Build & Apply

Basic scatter plot with plt.scatter

📖 Scenario: You are a data analyst working with a small dataset of students' study hours and their exam scores. You want to visualize the relationship between study hours and exam scores using a scatter plot.

🎯 Goal: Create a scatter plot using plt.scatter to show how study hours relate to exam scores.

📋 What You'll Learn

Create two lists: study_hours and exam_scores with exact values.

Create a variable point_color to set the color of the scatter points.

Use plt.scatter with the lists and point_color to plot the points.

Display the scatter plot using plt.show().

💡 Why This Matters

🌍 Real World

Scatter plots help visualize relationships between two sets of numbers, like hours studied and exam scores, to find patterns.

💼 Career

Data analysts and scientists use scatter plots to explore data and communicate findings clearly.

1

Create the data lists

Create a list called study_hours with these exact values: [2, 3, 5, 7, 8]. Also create a list called exam_scores with these exact values: [50, 60, 70, 80, 90].

Matplotlib

# Create the lists study_hours and exam_scores with the given values
# Your code here

Need a hint?

Use square brackets [] to create lists with the exact numbers given.

2

Set the color for scatter points

Create a variable called point_color and set it to the string 'blue' to use as the color for the scatter plot points.

Matplotlib

study_hours = [2, 3, 5, 7, 8]
exam_scores = [50, 60, 70, 80, 90]
# Create the variable point_color and set it to 'blue'
# Your code here

Need a hint?

Assign the string 'blue' to the variable point_color.

3

Create the scatter plot

Import matplotlib.pyplot as plt. Then use plt.scatter with study_hours, exam_scores, and the color set by point_color to create the scatter plot.

Matplotlib

study_hours = [2, 3, 5, 7, 8]
exam_scores = [50, 60, 70, 80, 90]
point_color = 'blue'
# Import matplotlib.pyplot as plt
# Use plt.scatter with study_hours, exam_scores, and color=point_color
# Your code here

Need a hint?

Use import matplotlib.pyplot as plt at the top. Then call plt.scatter() with the two lists and color=point_color.

4

Display the scatter plot

Use plt.show() to display the scatter plot you created.

Matplotlib

import matplotlib.pyplot as plt

study_hours = [2, 3, 5, 7, 8]
exam_scores = [50, 60, 70, 80, 90]
point_color = 'blue'

plt.scatter(study_hours, exam_scores, color=point_color)
# Use plt.show() to display the plot
# Your code here

Need a hint?

Call plt.show() to open the window with the scatter plot.