10.x.3 - Standard Deviation
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the formula for standard deviation?
💡 Hint: Think about how standard deviation relates to variance.
Why is standard deviation preferable over variance?
💡 Hint: Consider the implications of units in interpretation.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does a high standard deviation indicate?
💡 Hint: Think about the distribution of values.
True or False: Standard deviation can be negative.
💡 Hint: Consider what SD represents and the significance of distance.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
You collect the heights of five basketball players: 180 cm, 190 cm, 185 cm, 175 cm, and 195 cm. Calculate the variance and standard deviation of their heights.
💡 Hint: First, find the mean, then calculate squared differences and their average.
In a statistical experiment, the weights of bats are recorded as: 2.0 kg, 2.5 kg, 2.4 kg, and 3.0 kg. If the standard deviation is computed to be 0.3 kg, discuss how this affects the consistency of bat weights.
💡 Hint: Reflect on what standard deviation tells us about the range of weights.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.