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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Direct Method used for?
💡 Hint: Focus on the type of method discussed in this section.
Question 2
Easy
In the formula X = Σ(fX) / Σf, what does Σf represent?
💡 Hint: Think about what is being summed in the denominator.
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 Σ fX represent in the Direct Method?
- Sum of variables
- Sum of products of variables and frequencies
- Total frequency
💡 Hint: Think about what operations you're performing with the values.
Question 2
True or False: The Direct Method can only be used for continuous data.
- True
- False
💡 Hint: Recap the type of datasets the Direct Method is intended for.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A school has three groups of students with the following scores: 75 (10 students), 80 (15 students), and 90 (5 students). Calculate the mean score.
💡 Hint: Use the Direct Method formula to sum up the products.
Question 2
If the housing colony also had 50 plots of 400 sq. meters, recalculate the mean plot size.
💡 Hint: Remember to add the new frequency and recalculate the sums.
Challenge and get performance evaluation