Mathematics Higher Level Robert Joinson

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©Sumbooks2002Higher Level74. Frequency Polygons1. The data below shows the weights of 30 cats treated by a vet over a period of a week.3.1 4.9 4.1 3.7 4.3 3.6 4.3 4.8 4.2 4.23.7 4.1 5.4 4.6 3.1 4.2 3.3 4.4 4.4 3.73.3 4.3 4.7 5.3 4.1 4.6 5.1 3.6 4.1 3.6a) Use the data to complete this grouped frequency table.Weight w kg Frequency Mid value3.0 < w ≤ 3.53.5 < w ≤ 4.04.0 < w ≤ 4.54.5 < w ≤ 5.05.0 < w ≤ 5.5b) From your table construct a frequency polygon for the data. Use a scale of 4cm torepresent 1kg on the horizontal axis and 2cm to represent 2 cats on the vertical axis.2. The histogram below shows the heights of 112 greenhouse plants40Frequency3020100100 120 140 160 180 200 220Height of plantsa) Use the histogram to complete this grouped frequency table.Height h cm Frequency Mid value80
©Sumbooks2002Higher Level75. Cumulative Frequency (1)1. The table below shows the lengths (l) of 100 engineering components taken at random fromone days production in a light engineering works.Length l l ≤9.7 9.7
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48. Transformations of Graphs49. Ma
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Mathematics Higher Level Robert Joinson

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