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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the range of the dataset 3, 7, 2, 9, 5?
💡 Hint: Look for the highest and lowest numbers.
Question 2
Easy
Calculate the mean of the dataset 4, 8, 6.
💡 Hint: Add the numbers and divide by how many there are.
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 does range measure?
- Average of values
- Difference between max and min
- Spread of all data
💡 Hint: Remember, it focuses on just the extremes of the dataset.
Question 2
True or False: A small standard deviation means that the data points are closely clustered around the mean.
- True
- False
💡 Hint: Consider what it means if values are similar to each other.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A scientist records the heights of plants: 30 cm, 45 cm, 50 cm, 60 cm, 90 cm. Calculate the range and standard deviation. Discuss the implications of your findings.
💡 Hint: Calculate range first, then find the mean to determine the deviations.
Question 2
Given the book sales over five weeks: 200, 400, 300, 500, 600, find the range and standard deviation, then analyze how consistent sales are.
💡 Hint: Identify key values and apply SD formula after finding the mean.
Challenge and get performance evaluation