Why the answer is different: Because 1.C asks what are expectations are, and 1.B asks what the state of the class is
For b) and c), the questions were supposed to be the same—my bad, I have edited it. Please edit your answer accordingly.
Not all of your answers were correct (unsurprisingly, because I find some of the questions extremely hard—even I couldn’t answer them at first :D). I’ll wait for a few more replies and then I’ll post the correct answers plus explanations.
Oddly, my answers remained the same, but for different reasons. Also, I changed my answer to 1.D, and would recommend you change the wording to “Expected average” wherever you merely refer to the average.
For b) and c), the questions were supposed to be the same—my bad, I have edited it. Please edit your answer accordingly.
Not all of your answers were correct (unsurprisingly, because I find some of the questions extremely hard—even I couldn’t answer them at first :D). I’ll wait for a few more replies and then I’ll post the correct answers plus explanations.
Oddly, my answers remained the same, but for different reasons. Also, I changed my answer to 1.D, and would recommend you change the wording to “Expected average” wherever you merely refer to the average.