22. Lesson 4(DOT)2(COLON) Measures of spread(COLON) range, quartiles and IQR
Lesson Focus — Quiz
Test your understanding of lesson focus with 5 practice questions.
Practice Questions
Question 1
What is the range of the dataset: 12, 15, 22, 30, 5?
Question 2
In a dataset, which measure describes the middle value when the data is arranged in ascending order?
Question 3
If the first quartile (Q1) of a dataset is $10$ and the third quartile (Q3) is $30$, what is the interquartile range (IQR)?
Question 4
In a set of data, if a value is greater than $Q3 + 1.5 \times IQR$, what is it considered?
Question 5
Which quartile separates the lowest 25% of the data from the rest?