I'm not happy. I did the 'Calculating Dividends' task on Mathletics, and I got full marks, but it recorded it as 70%. I was annoyed, but I retried it. Once again I made no mistakes, but it recorded it as 90%. That's my 3rd attempt at it, too! I've had full marks every time, but Mathletics just won't accept it! Grrrr.
Rant over, I've also done two more data activities: calculating z scores and comparing z scores. I have done them before, although under different names: 'standard deviation' instead of 'z score'. I have two more activities to do, then the test, and then that's the data analysis unit complete!
I got my 99th certificate today, obviously it's bronze, but it will be a gold week next week!
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