Krista was looking at the Daily Mean Pressure for Leeming from May to October 1987. She used systematic sampling to select 14 values from the large data set. Here are the values she obtained: 1033 1011 1012 1018 1004 1016 1026 1014 1006 1014 1008 1006 986 1009 1012 1016 (b) A value in a data set can be regarded as an outlier if it is more than 1.5 times the interquartile range below Q1 or more than 1.5 times the interquartile range above Q3. Show that there are two outliers in the data.
Krista was looking at the Daily Mean Pressure for Leeming from May to October 1987. She used systematic sampling to select 14 values from the large data set. Here are the values she obtained: 1033 1011 1012 1018 1004 1016 1026 1014 1006 1014 1008 1006 986 1009 1012 1016 (b) A value in a data set can be regarded as an outlier if it is more than 1.5 times the interquartile range below Q1 or more than 1.5 times the interquartile range above Q3. Show that there are two outliers in the data.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer both parts b and c
Transcribed Image Text:Krista was looking at the Daily Mean Pressure for Leeming from May to October 1987.
She used systematic sampling to select 14 values from the large data set.
Here are the values she obtained:
1033
1011
1012
1018
1014 1014
1004 1016
1026
1006
1012
1008 1006 986 1009 1016
(b) A value in a data set can be regarded as an outlier if it is more than 1.5 times the
interquartile range below Q1 or more than 1.5 times the interquartile range above Q3.
Show that there are two outliers in the data.
Krista then summarised all the data in the table below and drew a histogram.
Number of days
Daily Mean
Pressure (hPa)
980 to 999
1000 to 1009
1010 to 1014
1015 to 1019
1020 to 1033
15
39
36
45
49
On Krista's histogram, the bar for 980 to 999 was 4 cm wide and 1.5 cm high.
(c) Calculate the width and height of the bar for 1020 to 1033.
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