Classes with at least 5 students

#
# Table: Courses
# +-------------+---------+
# | Column Name | Type    |
# +-------------+---------+
# | student     | varchar |
# | class       | varchar |
# +-------------+---------+
# (student, class) is the primary key (combination of columns with unique values) for this table.
# Each row of this table indicates the name of a student and the class in which they are enrolled.
# Write a solution to find all the classes that have at least five students.
# Return the result table in any order.
# The result format is in the following example.
# Example 1:
# Input:
# Courses table:
# +---------+----------+
# | student | class    |
# +---------+----------+
# | A       | Math     |
# | B       | English  |
# | C       | Math     |
# | D       | Biology  |
# | E       | Math     |
# | F       | Computer |
# | G       | Math     |
# | H       | Math     |
# | I       | Math     |
# +---------+----------+
# Output:
# +---------+
# | class   |
# +---------+
# | Math    |
# +---------+
# Explanation:
# - Math has 6 students, so we include it.
# - English has 1 student, so we do not include it.
# - Biology has 1 student, so we do not include it.
# - Computer has 1 student, so we do not include it.
#

# Write your MySQL query statement below

SELECT class
FROM Courses
GROUP BY class
HAVING COUNT(*) >= 5;