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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for calculating mean?
💡 Hint: Think of how you average a set of numbers.
Question 2
Easy
Define variance in your own words.
💡 Hint: It's related to the concept of spread.
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 mean of the following dataset: 12, 15, 18?
- 13
- 15
- 16
💡 Hint: Add the numbers and divide by the count.
Question 2
True or False: Standard deviation is the square of the variance.
- True
- False
💡 Hint: Consider the relationship between variance and standard deviation.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A factory's production data shows that out of 100 gadgets, 70 are functioning, calculate the mean, variance, and standard deviation.
💡 Hint: Use the formulas for binomial distribution.
Question 2
In a normal distribution, if the mean is 100 and the standard deviation is 15, calculate the value for which 95% of the data lies below it.
💡 Hint: Use the empirical rule for normal distributions.
Challenge and get performance evaluation