4300252063
22.02.2021 •
Mathematics
The amounts spent on clothes by 40 boys and 40 girls in one month were recorded.
The table shows information about the amounts spent by the boys.
Amount, x (E) Midpoint Number of boys
Osx<20
10
18
20 SX<40
30
9
The mean for the girls was £48.80
40 SX < 60
50
7
Estimate the mean for the girls as a
60 x 80
70
6
percentage of the mean for the boys.
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