The masses, m kilograms, of 148 objects are summarised in the following table. Construct a cumulative frequency

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The masses, m kilograms, of 148 objects are summarised in the following table.


Construct a cumulative frequency polygon on graph paper, and use it to estimate the number of objects with masses that are:

a. Within 0.1kg of the median

b. More than 200g from the median.

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