Practice - Cumulative Frequency and Percentiles
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Practice Questions
Test your understanding with targeted questions
Define cumulative frequency.
💡 Hint: Think about how you create totals as you add up values.
What does the 50th percentile represent?
💡 Hint: Consider the middle of a data set.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is cumulative frequency?
💡 Hint: Think about how totals grow when you keep adding more values.
True or False: The 100th percentile represents the highest score in a dataset.
💡 Hint: Consider what it means to be at the very top of a distribution.
1 more question available
Challenge Problems
Push your limits with advanced challenges
In a dataset of exam scores, the following scores were recorded: 65, 70, 75, 80, 85, 90, 95. Calculate the cumulative frequency and find the 75th percentile.
💡 Hint: Add frequencies and calculate the position for the 75th percentile.
A survey revealed that 40% of respondents are in the 50th to 75th percentile range for income. If there are 500 respondents, how many people fall within this income bracket?
💡 Hint: Calculate 40% of the total number of respondents.
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