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Exercise 12.1 – Frequency Distribution
(i) Upper limit last class: 53
(ii) Lower limit 39–43: 39
(iii) Midpoint 34–38: 36
(iv) Frequencies: 29–33: 6, 44–48: 15
(v) Class size: 5
(vi) Min students: 24–28
(vii) Lower limit freq 15: 44
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Keywords: Class 9 SSC Matric Maths, Unit 12 Statistics PCTB, PECTAA Notes, Punjab Boards 90+ marks, Frequency Distribution solved, Beaconhouse notes, LGS notes, City School notes, hsanotes.com, Exercise 12.1 solved