DA0-001 · Question #289
DA0-001 Question #289: Real Exam Question with Answer & Explanation
The correct answer is D: Mode = 36 Median = 37 Mean = 41.5. The measures of central tendency include the mode, median, and mean. The mode is the value that appears most frequently in a data set. In this case, the speed of 36 appears twice, making it the mode. The median is the middle value when a data set is ordered from least to greatest
Question
An analyst is reviewing the following data: Car ID Speed 123155 566436 564418 650567 546436 645638 Which of the following should the analyst include in the measures of central tendency for speed?
Options
- AMode = 38 Range = 31 Mean = 42.5
- BRange = 49 Max = 67 Min = 18
- CMode = 36 Max = 67 Min = 18
- DMode = 36 Median = 37 Mean = 41.5
Explanation
The measures of central tendency include the mode, median, and mean. The mode is the value that appears most frequently in a data set. In this case, the speed of 36 appears twice, making it the mode. The median is the middle value when a data set is ordered from least to greatest; for these speeds, when ordered (18, 36, 36, 38, 55, 67), the median is the average of the two middle numbers, which is ( \frac{36 + 38}{2} = 37 ). The mean is the average of all values, calculated as ( \frac{55 + 36 + 18 + 67 + 36 + 38}{6} = 41.7 ).
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