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For the following data, approximate the mean weekly grocery bill. Start 6 By 2 Table 1st Row 1st Column Bill left parenthesis in dollars right

For the following data, approximate the mean weekly grocery bill. Start 6 By 2 Table 1st Row 1st Column Bill left parenthesis in dollars right parenthesis 2nd Column Frequency 2nd Row 1st Column 135 dash 139 2nd Column 12 3rd Row 1st Column 140 dash 144 2nd Column 14 4st Row 1st Column 145 dash 149 2nd Column 15 5st Row 1st Column 150 dash 154 2nd Column 9 6st Row 1st Column 155 dash 159 2nd Column 5 EndTable Bill (in dollars) Frequency 135-139 12 140-144 14 145-149 15 150-154 9 155-159 5

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