A shop sells raincoats and umbrellas. The scatter graph shows the monthly sales for 12 months.
200
a) Write down the type of
correlation shown by
the graph
150
XX
X
X
Sales of
raincoats (E)
X
Х
100
х
Х
x
b) The manager expects the
sales of umbrellas next
month to be £70
Draw a line of Lust fit and
use it to estimate the sale
of raincoats next month.
£
X
50
X
X
(3)
0
20
80
100
40
60
Sales of umbrellas (E)
Total marks: 4