Practice - Fundamental Statistical Concepts
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Practice Questions
Test your understanding with targeted questions
Define population and sample in your own words.
💡 Hint: Think about a classroom versus a school.
What is the purpose of descriptive statistics?
💡 Hint: Consider how you might explain the main points of data to someone.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a population in statistics?
💡 Hint: Think about who is included in your survey.
True or False: A sample is always a perfect representation of the population.
💡 Hint: Consider sampling errors or biases.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A civil engineer is trying to estimate average water pressure in pipelines across a city. If she takes samples from 100 homes and finds an average of 55 psi with a standard deviation of 10 psi, how confident can she be in this sample's representation of the greater city population?
💡 Hint: Consider the role of sample size and randomness.
Given the following set of sensor data on material strain: 5, 10, 15, 20, calculate the mean, median, standard deviation, and detect any outliers.
💡 Hint: Apply proper formulas for calculating each measure.
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Reference links
Supplementary resources to enhance your learning experience.