Range, Quartiles, and IQR

Find the Range

100

12, 13, 40, 95, 88, 7, 95

88

200

26, 21, 27, 33, 24, 29

12

300

52, 40, 49, 48, 62, 54, 44, 58, 39

23

400

133, 117, 152, 127, 168, 146, 174

57

500

4.8, 5.5, 4.2, 8.9, 3.4, 7.5, 1.6, 3.8

7.3

Find the Quartiles

100

133, 117, 152, 127, 168, 146, 174

Q1 = 127

Q2 = 146

Q3 = 168

200

5, 12, 10, 9, 8, 7, 15

Q1 = 7

Q2 = 9

Q3 = 12

300

40, 33, 37, 54, 41, 34, 27, 39, 35

Q1 = 33.5

Q2 = 37

Q3 = 40.5

400

84, 75, 90, 87, 99, 91, 85, 88, 76, 92, 94

Q1 = 84

Q2 = 88

Q3 = 92

500

68, 58, 77, 50, 49, 63, 73, 75, 65

Q1 = 54

Q2 = 65

Q3 = 74

Find the IQR

100

132, 127, 106, 140, 158, 135, 129

Q1 = 127

Q2 = 132

Q3 = 140

IQR = 13

200

8, 14, 22, 7, 2, 11, 18

Q1 = 7

Q2 = 11

Q3 = 18

IQR = 11

300

40, 33, 37, 54, 41, 34, 27, 39, 35

Q1 = 33.5

Q2 = 37

Q3 = 40.5

IQR = 7

400

84, 75, 90, 87, 99, 91, 85, 88, 76, 92, 94

Q1 =84

Q2 = 88

Q3 = 92

IQR = 8

500

68, 58, 77, 50, 49, 63, 73, 75, 70

Q1 = 54

Q2 = 68

Q3 = 74

IQR = 20