The test scores of 15 students are listed below. find the lower quartile (q1). 42 45 50 57 60 63 66 70 73 78 85 87 90 94 95

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Mathematics

Valentina Acevedo

30 March, 05:14

The test scores of 15 students are listed below. find the lower quartile (q1). 42 45 50 57 60 63 66 70 73 78 85 87 90 94 95

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Sydney Hamilton · Answer 1

From the test scores given:

42 45 50 57 60 63 66 70 73 78 85 87 90 94 95

splitting the values into 3 sets:

(42 45 50 57 60) (63 66 70 73 78) (85 87 90 94 95)

from the first set we select the median:

42 45 50 57 60

the median is 50

thus the first quartile will be 50