The price paid for bread, potatoes and onions and quantity consumed by a family in 2015 and 2020 are as shown in the accompanying table. Calculate all possible weighted indexes using appropriate formula. Base year (2015) LOuantitu Current year (2020) LOuantitu Duiee

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.1: Measures Of Center
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The price paid for bread, potatoes and onions and quantity consumed by a family in 2015 and 2020 are as
shown in the accompanying table. Calculate all possible weighted indexes using appropriate formula.
Base year (2015)
Quantity
Current year (2020)
Item
Price
Price
Quantity
Bread (1 loaf)
20
7
15
6.
Potato (I kg)
25
12
20
13
Onion (1kg)
10
4
50
8
b)
The sales of a small grocery chain, since 1985 are as shown in the accompanying table in million BDT. Graph
the data fit a trend line employing least-squares method. Using your estimated trend line, forecast the sales for
1984 and 1991
Year
Sales in Million BDT
1985
9
1986
20
1987
16
1988
12
1989
15
Transcribed Image Text:The price paid for bread, potatoes and onions and quantity consumed by a family in 2015 and 2020 are as shown in the accompanying table. Calculate all possible weighted indexes using appropriate formula. Base year (2015) Quantity Current year (2020) Item Price Price Quantity Bread (1 loaf) 20 7 15 6. Potato (I kg) 25 12 20 13 Onion (1kg) 10 4 50 8 b) The sales of a small grocery chain, since 1985 are as shown in the accompanying table in million BDT. Graph the data fit a trend line employing least-squares method. Using your estimated trend line, forecast the sales for 1984 and 1991 Year Sales in Million BDT 1985 9 1986 20 1987 16 1988 12 1989 15
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