In the following dataset, mode with outlier is , and mode without outlier is .
1
0
1
5
6
3
4
15
15
A
1
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B
15
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C
1or15
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D
1and15
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Solution
The correct option is D1and15 In the given data set, except the number 15, all the remaining data points lie between 0 and 6. So, the outliers of the given data set are 15 and 15.
∙ On arranging the data set with outliers in an increasing order, we get
0
1–
1–
3
4
5
6
15–––
15–––
Here, both the numbers 1 and 15 repeat twice, which is the maximum number of occurrence in the data set.
∴ The modes of the data set with outliers are 1 and 15.
∙ The given ordered data set without outliers is
0
1–
1–
3
4
5
6
Here, only the number 1 repeats twice, which is the maximum number of occurrence in the data set.