Mathematics · May / June 2021 · Paper 42 · Question 4
0580
As printed in the paper
Show the answer and mark scheme
4(a)(i)[3]
Correct histogram [3]
B1 for each correct block If 0 scored,
SC1 for any two of fds 7.5, 3.33…, 0.8 oe soi
4(a)(ii)[4]
3.7875 or 3.79 or 3.787 or 3.788 [4]
M1 for 0.75, 1.5, 3, 5.5, 9.5 soi Σ
M1 for fx M1 dep for their fx Σ ÷ 40
4(a)(iii)[1]
11 40 oe [1]
4(a)(iv)[3]
30 203 oe [3]
M2 for [2 ×] 4 15 × oe 29 28
or M1 for 4 15 or 29 oe seen 29 4 26 After 0 scored,
SC1 for [ 2 × ] × 40 39 oe or for answer 120 841 oe
4(b)(i)[1]
4.6 [1]
4(b)(ii)[1]
3.2 [1]
4(b)(iii)[2]
[median] remains the same oe and one is below [the median/middle] and one is above oe [2]
B1 for each statement
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