Practice Calculation of arithmetic mean for Grouped data - 5.2.1.2 | 5. Measures of Central Tendency | CBSE 11 Statistics for Economics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the arithmetic mean of the following numbers: 1, 3, 5?

πŸ’‘ Hint: Add the numbers and divide by how many there are.

Question 2

Easy

Define grouped data.

πŸ’‘ Hint: Think about data summarized in tables.

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 arithmetic mean?

  • A) Sum of values / Number of values
  • B) Number of values / Sum of values
  • C) Sum of values Γ— Number of values

πŸ’‘ Hint: Remember the basic concept of average.

Question 2

True or False: The Arithmetic Mean is sensitive to extreme values.

  • True
  • False

πŸ’‘ Hint: Consider how values affect an average.

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Challenge Problems

Push your limits with challenges.

Question 1

A community has reported the following incomes: 200, 300, 250, 400, and 500. Use the Assumed Mean Method to calculate the mean.

πŸ’‘ Hint: Remember to first assume a value and calculate deviations from it.

Question 2

The following are the frequencies of students' scores in a class: 30, 25, 15, 10. Calculate a suitable mean using the Direct Method.

πŸ’‘ Hint: Sum the products carefully!

Challenge and get performance evaluation