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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the mean for the following data: 2, 4, 6, 8.
💡 Hint: Add all values and divide by the total count.
Question 2
Easy
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.
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 the formula for calculating the mean?
- X = N / Σx
- X = Σx / N
- X = Σx * N
💡 Hint: Remember which way goes the division.
Question 2
True or False: The sum of deviations in a data set should always equal the mean.
- True
- False
💡 Hint: Think about what deviations measure.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation