4400 Higher November 2005 Paper 4 Q19

EdexcelHigherOld spec3 marksHistograms

19 The histogram gives information about the masses of some stones.

Histogram of frequency density against mass in grams from 140 to 210 with no scale on the vertical axis: 140–160 height 1 square, 160–170 height 4 squares, 170–175 height 6 squares, 175–180 height 5 squares, 180–210 height 1 square

The number of stones in the 170 g – 175 g class is 24 more than the number of stones in the 140 g – 160 g class.

Calculate the total number of stones.

(3)

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