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9th Grade Interquartile Range Quizzes, Questions & Answers

Spark curiosity and test your child’s 9th grade Interquartile Range knowledge with our engaging quizzes! Read more

Interquartile Range Quizzes By Grade

9th Grade

Find More 9th Grade Subject Quizzes

Function Graphs Polynomial Basics Quadratic Formula Function Basics Fraction Basics Imaginary Unit

Top Trending Interquartile Range Quizzes

Year 12 Further Mathematics Chapter 1 & 2 Review

Year 12 Further Mathematics Chapter 1 & 2 Review

Summarising numerical data: the median, range, IQR and box plots

Questions: 9 | Attempts: 322 | Last updated: Mar 20, 2023

Sample Question 1
A sample of 21 travellers was asked the number of nights they spent away from home last year. Their responses are summarised in the following stem-and-leaf plot.0 | 1 1 2 2 3 4 5 5 6 6 7 91 | 0 2 4 4 62 | 2 2 33 |4 | 4The median number of nights away from home is:

6

6.5

7

8

9

Sample Question 2
A sample of 21 travellers was asked the number of nights they spent away from home last year. Their responses are summarised in the following stem-and-leaf plot.0 | 1 1 2 2 3 4 5 5 6 6 7 91 | 0 2 4 4 62 | 2 2 33 |4 | 4The interquartile range (IQR) of nights away from home is:

3.5

11.5

15

22

43

Sample Question 3
The amount of money (in dollars) spent by each of 15 students on leisure activities in the past week is as follows:10 30 30 30 35 38 45 45 47 49 50 51 52 58 100The 5 figure summary for this data is:

Minimum = 10, Q1 = 30, Median = 45, Q3 = 52, Maximum = 100

Minimum = 10, Q1 = 30, Median = 46, Q3 = 51, Maximum = 100

Minimum = 10, Q1 = 30, Median = 45, Q3 = 51.5, Maximum = 100

Minimum = 10, Q1 = 30, Median = 45, Q3 = 51, Maximum = 100

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