What is the value of Q1 for the following data set ?..15, 18, 10, 20, 23, 28, 12, 16 .
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Answer:
it's help you
Step-by-step explanation:
Arrange in ascending order
10,12,15,16,18,20,23,28
N=8
Q1=(N+1/4)th observation
Q1=(8+1/4)th obs.
Q1=9/4
Q1=(2.25)th obs.
Q1 = 2nd obs + 0.25 ( 3rd obs - 2 nd obs.)
Q1= 12+0.25(15-12)
Q1=12+0.25(3)
Q1=12+0.75
Q1=9
I think it's a correct answer
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