5. Quantitative Reasoning
Statistics Essentials — Quiz
Test your understanding of statistics essentials with 5 practice questions.
Practice Questions
Question 1
In a dataset with values $\{5, 7, 8, 10, 12\}$, what is the variance?
Question 2
Which of the following statements is true regarding the standard deviation?
Question 3
If the mean of a dataset is 100 and the standard deviation is 15, what percentage of data falls within one standard deviation of the mean in a normal distribution?
Question 4
For the dataset $\{2, 4, 4, 4, 5, 5, 7\}$, what is the median?
Question 5
Which measure of central tendency is best used for skewed distributions?