13.4.2 - Example 1
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Practice Questions
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What is the formula for finding the median of grouped data?
💡 Hint: Think of the variables: l for lower limit, cf for cumulative frequency.
In a frequency distribution, how do you calculate cumulative frequency?
💡 Hint: Start from the first frequency and keep adding.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the key requirement to identify the median class?
💡 Hint: Think about halves of data.
True or False: The median is impacted heavily by extreme values.
💡 Hint: Consider the definition of median and how it handles data.
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Challenge Problems
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Given a dataset with the following frequency distribution for weights: 40-50 (10), 50-60 (12), 60-70 (15), 70-80 (10). Calculate the median weight.
💡 Hint: Identify the cumulative frequency before applying the formula.
Calculate the median of grouped data given by class intervals: 0-10 (3), 10-20 (7), 20-30 (15), 30-40 (5). Determine the median and discuss its significance.
💡 Hint: Focus on cumulative frequency for accurate median class identification.
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