9th Grade Interquartile Range Quizzes, Questions & Answers

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Polynomial Basics Medians And Altitudes Venn Diagram Use Euclidean Algorithm Permutation Basics Polynomial Identities Function Basics Modular Inverses Composite Solids Interquartile Range Fraction Basics Finding Angles Modular Multiplication Pythagorean Triples Mode

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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, 2025
  • 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:
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  • 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:
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  • 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:
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