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as level Edexcel chapter 1 data collection
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Powerpoint presentation of key definitions and explanations of the chapter 1 data collection
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, Prior Knowledge Check
1) Find the mean, median, mode 3) Rebecca records the shoe size,
and range of these data sets x, of the female students in her
year. The results are in the table.
a) 1, 3, 4, 4, 6, 7, 8, 9, 11 5.89, 6, 4, 10
Number of
b) 20, 18, 17, 20, 14, 23, 19, 16
students,
18.38, 18.5, 20, 9 35 3
2) Here is a question from a 36 17
questionnaire surveying TV viewing 37 29
habits. 38 34
Overlapping category
How much TV do you watch? Nothing above 4 39 12
0-1 Hours No time period etc
1-2 Hours Find the mean shoe size.
3-4 Hours
37.37
Give 2 criticisms and write an
improved version of the question.
,Teachings for Exercise 1A
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