Based on the probabilities calculated, Detective Emily concluded that there was a 40% chance that Alex picked a blue pen, and a 30% chance that Alex picked a red or black pen. Although the calculations didn't provide definitive proof, they helped Detective Emily to make an informed decision about Alex's involvement in the case.
Now, try working on some practice problems for Secondary Math 2 Module 9 Probability 9.4 to reinforce your understanding of probability concepts. Secondary Math 2 Module 9 Probability 9.4 Answers
So, the probability that Alex picked a black pen is 0.3 or 30%. So, the probability that Alex picked a black pen is 0
Detective Emily was on a mission to solve the mystery of the missing pens from the school's math department. The department had 20 pens in total, and it was known that 8 of them were blue, 6 were red, and 6 were black. Probability (red pen) = 6/20 = 3/10 = 0
Probability (red pen) = 6/20 = 3/10 = 0.3
