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

1 answer:

3 0

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

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