Mathematics · May / June 2021 · Paper 41 · Question 8
0580
As printed in the paper
Show the answer and mark scheme
8(a)(i)[2]
3 22 43 48 50 [2]
B1 for 4 correct
or M1 for one error in adding.
8(a)(ii)[3]
correct diagram [3]
B1FT their (a)(i) for 5 correct heights
B1 for 5 points at upper ends of intervals on correct vertical line B1FT dep on at least
B1 for increasing curve through their 5 points After 0 scored,
SC1 for 4 of their points correctly plotted
8(a)(iii)[1]
35 to 38 [1]
8(b)[4]
Correct box-and-whisker diagram 1.45 1.57 1.64 1.71 1.83 [4]
B1 for median 1.64 drawn
B1 for LQ 1.57 drawn
B1 for UQ 1.71 drawn If 0 scored
SC1 for 1.64, 1,57 or 1.71 seen
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