6:12 1 ull Question Question 9 An outlier in a graph of data defined as an indiv

Question

6:12 1 ull Question Question 9 An outlier in a graph of data defined as an individual data point that falls outside the overall pattern of the graph. There are several rules thumb use a) the assumption of normality and the rule using three population standard deviations and b) the quartiles and interquartile range. Calculated the following criteria for the test grade data set (full credit 40) as follows: 16, 16, 17, 19, 23, 24, 25, 37, 38, 39 What is first quartile of the data? A 17 B 18 C 19 D 20

Explanation / Answer

If we arrange the given data in ascending order

In this data the first half is from 1 to 5, middle of these numbers is sr. no 3

Hence Q1 = 17

Option A

1 16 2 16 3 17 4 19 5 23 6 24 7 25 8 37 9 38 10 39

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