SPM 2018 Add Maths Paper 1, Question 3Statistics
Solved on video in English and Bahasa Melayu · 2 marks · Older syllabus, Statistics · 3:59 video
The question
Table 1 shows the information about a set of data. State (a) the value of p if m = 20, (b) the value of q if p = 2.5.
[2 marks]
3:59Step 1
The new data is formed from the original by the linear transformation y = px + 1: multiply every value by p, then add 1.
5 more steps, each with the reason for it, in the full solution
Final answer
(a) p = 4, (b) q = 6
Where students lose marks
Watch out: +1 doesn't change the spread (m = 5p) but does shift the median. In (b), use p = 2.5, not 4.
Watch every step of this question solved on video (3:59), with the reason behind each step and a box that checks your own answer.
No card. Every past-year question on video, in English and BM.
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