[Official Thread] OCR MEI AS Mathematics 2016 (C1, C2 & S1)

Surely for the last question it gave us the probability that X=2 and that was less than 5%?

Graphical calculator says 4 for IQR so I say 4

I got the IQR wrong and got 3

For question 5) could you have worked out P(R and S) by doing P(R) X P(S) ?

I got 4 for the iqr but not sure method was right, added the 5th and 6th term then divided by 2 to get 27.8. Added the 15th and the 16th then divided by 2 to get 31.8 so the iqr is 4. Is that right method for working out 5.25th term and 15.75th term? Only question that I'm slightly worried about

Think it was only 1 mark

For question 5) could you have worked out P(R and S) by doing P(R) X P(S) ?

This gives you the 5.5th and 15.5th term, which looks to be correct. Think you may have accidentally done it correctly, with correct method too

For question 5) could you have worked out P(R and S) by doing P(R) X P(S) ?

is it me or was the histogram very difficult to draw because of the scales they gave you? mine was very cramped

What did everyone get for the question where it said why can't you carry out the hypothesis test with 20 samples? I something like because there is no value of P(X< which can be lower than the significance level at the lower end of the distribution,

what did everyone get for the question what % of shoes are less than £100

Pretty sure I got half of the questions wrong I got like 3.6 for IQR oops

2i) was 0.8^3 so 0.512

for question 2 iii) did anyone do 1- 0.16 = 0.84