Average and spread
Find the range of these sets of data. (a) 4, 6, 6, 9 ,5, 8 (b) 19, 19, 31, 42, 24, 29, 25
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2 The youngest member of a club is 18. The range of ages is 25. (a) What is the age of the oldest member? (b) A new member joins who is 16. Will the range increase, decrease or stay the same?
Conduct a statistical investigation to answer this question. How has the length of pop songs changed over time? Research length of the top 20 songs sold in 1980 and in 2020. Collect your results in a table. Calculate the average length of song in 1980s and in 2020. It might help to convert the length of songs to seconds. What does your data show?
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28/04/2022 12:11
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