13.2.1 - Finding the Mean
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Practice Questions
Test your understanding with targeted questions
What is the formula for calculating the mean of grouped data?
💡 Hint: Remember, f is frequency and x is the observations.
List one advantage of using the Step-Deviation Method.
💡 Hint: Think about how it helps in division.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of finding the mean?
💡 Hint: Think about the definition of mean.
True or False: The Assumed Mean Method always gives an exact mean.
💡 Hint: Consider how we handle data adjustments.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Consider a dataset of exam scores (15, 23, 32, 45, 55) with frequencies (1, 2, 2, 3, 2). Calculate the mean using both the Direct and Assumed Mean methods.
💡 Hint: Conduct calculations in stages!
Using a different dataset of daily temperatures (20 - 30, 30 - 40, 40 - 50 with corresponding frequencies), calculate the mean through all discussed methods.
💡 Hint: Think carefully about how the data impacts mean calculations!
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