What is a moving average and why is it used?
Index Numbers and Moving Averages
Original Khojo Papers practice question — not from a past board paper.
125
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The index is ΣP1 ÷ ΣP0 × 100 = 250 ÷ 200 × 100 = 125, so prices have risen by 25%.
From the same topic and chapter, at a similar level.
What is a moving average and why is it used?
Index Numbers and Moving Averages
Calculate the three-yearly moving averages for the series 2, 4, 6, 8, 10.
Index Numbers and Moving Averages
Distinguish between Laspeyres' and Paasche's price index.
Index Numbers and Moving Averages
What is an index number? State one of its uses.
Index Numbers and Moving Averages
In a class of 60 students, 35 play cricket, 28 play football and 12 play both. How many play neither?
Sets
Prove that cos 2A = 1 − 2sin2A.
Trigonometric Functions