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LFM Stats And Pure
Data representation
Q6
CAIE S1 2015 November — Question 6
Exam Board
CAIE
Module
S1 (Statistics 1)
Year
2015
Session
November
Topic
Data representation
Type
Draw histogram then perform calculations
6 The heights to the nearest metre of 134 office buildings in a certain city are summarised in the table below.
Height (m)
\(21 - 40\)
\(41 - 45\)
\(46 - 50\)
\(51 - 60\)
\(61 - 80\)
Frequency
18
15
21
52
28
Draw a histogram on graph paper to illustrate the data.
Calculate estimates of the mean and standard deviation of these heights.
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