.probability.

Assalamualaikum.

Today, at 10 o'clock in the morning, I had a test on Probability Theory. The test contribute 15% out of the total marks of the module, which is Communications Theory. The topic Probability Theory itself (for me) has a lot to focus on and based on past year test papers, each question has a large amount of marks which leads to specific (or 'tedious' if I would say) workings on the solution. I only studied for the test the night before.

The lecturer made a surprise. The questions were all multiple-choices. Yes. To be exact, 10 MCQs, with each question carries 1.5 marks. I was like, "what's this!". Seriously, it was truly a 'probability' test. Since there is 4 options for each question, therefore the chances of getting a question correct is 0.25 and the chances of getting only 1 question correct out of 10 is 0.1877. This means that the probability of I'm getting all questions correct is approximately 0.0009537. This will then lead to an average of 2.5 questions that is possible to be correct out of the 10 questions. To make things worst, on the answer sheet of the MCQ, the lecturer added another choice of answer for each question, which is 'Something Else'. This really has messed up all the calculations. err.

By the way, it was an open-book test. Jyeah.

Wailalliqa' maassalamah.