Practice - Exercise 14.4
Practice Questions
Test your understanding with targeted questions
Calculate the mean of the following numbers: 5, 10, 15.
💡 Hint: Add all numbers, then divide by how many numbers there are.
Identify the mode of this data set: 1, 2, 2, 3, 4.
💡 Hint: Look for the number that appears most frequently.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the mean of the numbers 10, 20, 30?
💡 Hint: Remember the formula for mean!
True or False: The mode is always a unique number.
💡 Hint: Consider that datasets can be bimodal or multimodal.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A teacher has recorded the following scores of her class of 15 students: 20, 22, 23, 23, 25, 27, 30, 30, 30, 32, 35, 36, 38, 40, 40. Calculate mean, median, and mode.
💡 Hint: Sort data first for median and count frequences for mode.
In a survey, if the mean of a dataset is 12 and you include one additional number that is 15, what will be the new mean?
💡 Hint: Think about how adding a number affects overall average!
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Reference links
Supplementary resources to enhance your learning experience.