Practice - Direct Method - 2.1.4.1
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Practice Questions
Test your understanding with targeted questions
Calculate the mean for the following data: 2, 4, 6, 8.
💡 Hint: Add all values and divide by the total count.
If the rainfall for one district is 600 mm and the average for 5 districts is 800 mm, what is the deviation?
💡 Hint: Deviation = value - assumed mean.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating the mean?
💡 Hint: Remember which way goes the division.
True or False: The sum of deviations in a data set should always equal the mean.
💡 Hint: Think about what deviations measure.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given a dataset of numbers 15, 25, 35, 45, calculate the mean and deviations from an assumed mean of 30.
💡 Hint: Remember to calculate the mean first and then the deviations.
A dealer records the rainfall measurements (in mm) as follows: 450, 550, 600. If the assumed mean is 500, compute the mean and deviations.
💡 Hint: First calculate the mean, then evaluate each value's deviation from 500.
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