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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define cumulative frequency.
💡 Hint: Think about how you create totals as you add up values.
Question 2
Easy
What does the 50th percentile represent?
💡 Hint: Consider the middle of a data set.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is cumulative frequency?
- A total of each data point
- A running total of frequencies
- A representative sample
💡 Hint: Think about how totals grow when you keep adding more values.
Question 2
True or False: The 100th percentile represents the highest score in a dataset.
- True
- False
💡 Hint: Consider what it means to be at the very top of a distribution.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation