- 20 Marks
QMDM – APR 2023 – L2 – Q1 – Frequency Distribution and Charts for Patient Heights
Explain differences in charts, construct frequency table and charts for heights of 40 patients.
Question
Central Legon Hospital in Accra recorded the Height (in cm) of 40 patients reporting to the OPD in a day and come up with the following figures:
150 141 158 147 132 153 176 162 180 165 174 133 129 119 133 188 190 165 157 146 161 130 122 169 159 152 173 148 154 171 136 155 141 153 147 168 150 140 161 185
(a) Explain (briefly) the difference between a percentage frequency bar chart and cumulative percentage frequency bar graph for the height of the 40 patients to the director of the Central Legon Hospital. [5 Marks]
(b) Using classes 110 – 119,120 – 129,130 – 139 and so on, construct a frequency distribution table for the heights of the 40 patients. [10 Marks]
(c) Using (b) above, a percentage frequency bar chart and a cumulative percentage frequency bar chart on the same graph. i.e. super – impose the cumulative percentage frequency chart on percentage frequency bar chart. [8 Marks]
(d) Comment on your charts in (c) above. [2 Marks]
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