13.2.4 - Assumed Mean Method
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Practice Questions
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What is the Assumed Mean Method?
💡 Hint: Think about how this methods helps with large datasets.
Explain how to choose the value of 'a' in the Assumed Mean Method.
💡 Hint: Consider mid-points or typical values.
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Interactive Quizzes
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What does 'a' represent in the Assumed Mean Method?
💡 Hint: 'a' is important for managing our calculations.
True or False: The Assumed Mean Method always gives a different mean than the Direct Method.
💡 Hint: Consider the purpose of both methods in relation to outcomes.
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Challenge Problems
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Using a dataset with the midpoints of intervals: 18, 23, 30, and total frequency as 50, calculate the mean using the Assumed Mean Method if the assumed mean is 24.
💡 Hint: Work out each calculation step carefully.
Explore the impact on accuracy when 'a' is chosen too far from the median; provide calculations to support your argument.
💡 Hint: Use hypothetical numbers to show your claims practically.
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