When data has been grouped, the average value cannot be found exactly as the individual values in each class are not known. Module 2 (M2) - Handling data - Scatter graphs Scatter graphs are a good way ...
Now, Range = Highest value − Lowest value = (152 − 130) cm = 22 cm. 2. Organise the following marks in a class assessment, in a tabular form. Here, Sum of all the observations = 4 + 6 + 7 + 5 + 3 + 5 ...
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