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  3. systolic blood pressure was measured in a group of

Systolic blood pressure was measured in a group of 30 patients diagnosed with hypertension: Patient No. 1 2 3 4 5 6 7 8 9 10 Blood pressure,...

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Advance Math

Systolic blood pressure was measuredin a group of 30 patients diagnosed with hypertension:

Patient No.

1

2

3

4

5

6

7

8

9

10

Blood pressure, mmHg

155

138

126

152

164

142

128

132

170

145

Patient No.

11

12

13

14

15

16

17

18

19

20

Blood pressure, mmHg

129

122

128

127

141

132

127

145

138

138

Patient No.

21

22

23

24

25

26

27

28

29

30

Blood pressure, mmHg

127

147

120

125

132

123

138

182

120

158

  1. Relying on this data find:
    • the median
    • the lower and upper quartiles
    • the 90thpercentile
    • the interquartile range
    • the mean
    • the standard deviation
  2. Discuss which approach (the mean and standard deviation or themedian and interquartile range) better reflects the centraltendency and variation for the given data.

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