Probability (blue pen) = 8/20 = 2/5 = 0.4

One day, while investigating, Detective Emily stumbled upon a suspicious-looking student, Alex, who was seen near the math department around the time the pens went missing. When questioned, Alex claimed to have only taken a pen randomly from the department.

Probability (red pen) = 6/20 = 3/10 = 0.3

Now, try working on some practice problems for Secondary Math 2 Module 9 Probability 9.4 to reinforce your understanding of probability concepts.