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The worksheet is provided in 2 sizes.

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Presentation on theme: "The worksheet is provided in 2 sizes."— Presentation transcript:

1 The worksheet is provided in 2 sizes.
Median – Worksheet A The worksheet is provided in 2 sizes.

2 Printing To print handouts from slides -
Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides - Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’ To print double-sided handouts - Highlight both slides before using ‘Print Selection’. Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

3 Finding the Median Value
Find the median for each set of raw data. What is the rule for finding the median value? Raw Data How many pieces of data? Middle Number(s) (Median) Median Position (1st, 2nd, 3rd?) 1, 3, 6 3 2nd 1, 2, 3, 4, 5 2, 4, 5, 6, 6, 6, 7 1, 2, 3, 4, 4, 4, 5, 6, 6 3, 4, 4, 5, 5, 6, 7, 7, 8, 10, 11 2, 4 2 2 & 4 1.5th 3, 4, 4, 5 3, 4, 4, 5, 7, 8 2, 3, 6, 6, 7, 8, 9, 9 5, 6, 7, 7, 8, 9, 10, 11, 11, 12 5, 6, 6, 7, 8, 10, 11, 11, 11, 12, 13, 13 21 34 50 𝑛 pieces of data 𝑛 If the Median is between two values, what should we do? A) Take the highest value? B) Take the lowest value? C) Take both values? D) Take the mean of the values?

4 Finding the Median Value
Find the median for each set of raw data. What is the rule for finding the median value? Raw Data How many pieces of data? Middle Number(s) (Median) Median Position (1st, 2nd, 3rd?) 1, 3, 6 3 2nd 1, 2, 3, 4, 5 5 3rd 2, 4, 5, 6, 6, 6, 7 7 6 4th 1, 2, 3, 4, 4, 4, 5, 6, 6 9 4 5th 3, 4, 4, 5, 5, 6, 7, 7, 8, 10, 11 11 6th 2, 4 2 2 & 4 1.5th 3, 4, 4, 5 4 & 4 2.5th 3, 4, 4, 5, 7, 8 4 & 5 3.5th 2, 3, 6, 6, 7, 8, 9, 9 8 6 & 7 4.5th 5, 6, 7, 7, 8, 9, 10, 11, 11, 12 10 8 & 9 5.5th 5, 6, 6, 7, 8, 10, 11, 11, 11, 12, 13, 13 12 10 & 11 6.5th 21 11th 34 17.5th 50 25.5th 𝑛 pieces of data 𝑛 𝑛+1 2 Answers If the Median is between two values, what should we do? A) Take the highest value? B) Take the lowest value? C) Take both values? D) Take the mean of the values?

5 Finding the Median Value Finding the Median Value
Find the median for each set of raw data. What is the rule for finding the median value? Find the median for each set of raw data. What is the rule for finding the median value? Raw Data How many pieces of data? Middle Number(s) (Median) Median Position (1st, 2nd, 3rd?) 1, 3, 6 3 2nd 1, 2, 3, 4, 5 2, 4, 5, 6, 6, 6, 7 1, 2, 3, 4, 4, 4, 5, 6, 6 3, 4, 4, 5, 5, 6, 7, 7, 8, 10, 11 2, 4 2 2 & 4 1.5th 3, 4, 4, 5 3, 4, 4, 5, 7, 8 2, 3, 6, 6, 7, 8, 9, 9 5, 6, 7, 7, 8, 9, 10, 11, 11, 12 5, 6, 6, 7, 8, 10, 11, 11, 11, 12, 13, 13 21 34 50 𝑛 pieces of data 𝑛 Raw Data How many pieces of data? Middle Number(s) (Median) Median Position (1st, 2nd, 3rd?) 1, 3, 6 3 2nd 1, 2, 3, 4, 5 2, 4, 5, 6, 6, 6, 7 1, 2, 3, 4, 4, 4, 5, 6, 6 3, 4, 4, 5, 5, 6, 7, 7, 8, 10, 11 2, 4 2 2 & 4 1.5th 3, 4, 4, 5 3, 4, 4, 5, 7, 8 2, 3, 6, 6, 7, 8, 9, 9 5, 6, 7, 7, 8, 9, 10, 11, 11, 12 5, 6, 6, 7, 8, 10, 11, 11, 11, 12, 13, 13 21 34 50 𝑛 pieces of data 𝑛 If the Median is between two values, what should we do? If the Median is between two values, what should we do? A) Take the highest value? B) Take the lowest value? C) Take both values? D) Take the mean of the values? A) Take the highest value? B) Take the lowest value? C) Take both values? D) Take the mean of the values?

6

7 tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!? Any feedback would be appreciated . Please feel free to


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