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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the weighted arithmetic mean.
💡 Hint: Consider how each item’s significance differs.
Question 2
Easy
What formula is used to calculate the weighted mean?
💡 Hint: Think of how weights and values combine.
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 purpose of using a weighted mean?
- To treat all values equally
- To assign different importance
- To average only the highest values
💡 Hint: Think about averages in real-life scenarios.
Question 2
True or False: The weighted mean can be misleading if the weights are not rightly assigned.
- True
- False
💡 Hint: Consider how incorrect data assignment could affect outcomes.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A shop sells 70 apples at $1 each, 30 apples at $1.50 each, and 10 apples at $2 each. Calculate the weighted average cost of an apple.
💡 Hint: Add up all the costs multiplied by their counts.
Question 2
In a survey, two groups had the following reactions: Group A (30 people rated 1-5 scale scores of 3 and 60 people rated scores of 4). What is the weighted mean of their ratings?
💡 Hint: Focus on the scores and the number of ratings to calculate properly.
Challenge and get performance evaluation