GCSE Edexcel Maths Higher Non-Calc TodayWatch
I'm pretty sure i got everything correct apart from the question which asked for lower quartile, upper quartile and box plot. The marks given seemed to low for the amount of work needed to add up all the values. How were you meant to answer it?
btw did any get the answer to the very last question to be f(x) = x^2 - 8?
The first time I did 1 of them I tried to do it the same way as you (+got nowhere).
The way your meant to do it is if there are 15 values the 8th is the median, the 4th is the LQ and the 12th is the UQ.
I didn't get the last question and didn't like the probability one took me about 1/2 n hour to draw the tree.
but the ****ing frequency density!!! it totally slipped my mind how to do it i was so fuking pissed off!