Concept explainers
To find:The outliers of the stem plot graph.
Answer to Problem 125E
The outlier is 216
Explanation of Solution
Given:
As per the given graph,the given dataset is:
91 | 95 | 103 | 107 | 108 | 109 | 114 | 117 | 121 | 129 |
148 | 149 | 153 | 154 | 154 | 154 | 155 | 162 | 163 | 169 |
172 | 172 | 173 | 183 | 185 | 186 | 191 | 203 | 210 | 222 |
Calculation:
Thus, the total number of values (n) is 30.
First
Thus, first Quartile is 115.80.
Third quartile (Q3), can be calculated as:
Thus, the third quartile is 22.
The upper and lower limit for the value can be calculated as:
Thus, those value which does not lie in the interval (15,216.6), would be outlier.
Since, the values 216does not lie in the interval.
Hence, the outlier is 216.
Thus, the correct option is “c”.
Chapter 1 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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