AC9M6ST01Year 6StatisticsPractised on site

AC9M6ST01 — Year 6 Statistics

Official Curriculum Content Description:

interpret and compare data sets for ordinal and nominal categorical, discrete and continuous numerical variables using comparative displays or visualisations and digital tools; compare distributions in terms of mode, range and shape

Worked Examples (1)

Example 1Comparing Displays of Continuous Data
Two data sets are recorded: Class 6A test scores: {12,15,16,18,19}\{12, 15, 16, 18, 19\} Class 6B test scores: {14,14,17,18,22}\{14, 14, 17, 18, 22\} Calculate the difference between the range of Class 6A test scores and the range of Class 6B test scores.
Common mistake: Adding summary statistics together instead of finding the difference.
Correct Answer:11
Worked Solution:
1. Range of Class 6A test scores = 19−12=719 - 12 = 7. 2. Range of Class 6B test scores = 22−14=822 - 14 = 8. 3. The difference in ranges is ∣7−8∣=1|7 - 8| = 1.

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