The number of laptops sold by a store was recorded each month for a period of 26
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The number of laptops sold by a store was recorded each month for a period of 26 months. The results are shown in the stem and leaf diagram. Key: 18 means 18 laptops stem leaf 1. 8 2 3 6 79 9 3 26667 88 4 4 5 5 5 7 7 7 7 9 5 2 7 7 9 (1) (5) a Find the median. b Find the lower quartile. c Find the upper quartile. d Work out the interquartile range. e Write down the modal number of laptops sold.
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Related Book For 
Edexcel As And A Level Modular Mathematics Statistics 1
ISBN: 978-0435519124
1st Edition
Authors: Keith Pledger Et Al
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