Practice Example 2 (13.4.3) - Statistics

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6 sample questions

Question 1.
Define cumulative frequency in your own words.
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Think about how we accumulate totals for clarity.
Question 2.
What is the formula for finding the median in grouped data?
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List the variables carefully.
3Question 3.
What is the formula for calculating the median in grouped data?
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Break down the formula into its parts.
4Question 4.
True or False: The median is affected by extreme values in the dataset.
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Recall how the median is calculated.
Question 5.
A frequency distribution has been given with an even number of total observations. How would you calculate the median class?
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Think about which cumulative frequency will be greater than n/2.
Question 6.
Given three different datasets, determine which one would likely provide a more accurate median: a dataset with many outliers, a dataset with few extreme values, or uniformly distributed data.
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Consider what might affect the median value more.

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