Question
In: Statistics and Probability
What measure of the center and spread should be used for the Pulse Rate data? The mean and standard deviation, or the Median and the IQR? Explain,
Statistics
| Variable | Mean | StDev | Minimum | Q1 | Median | Q3 | Maximum | Range | IQR |
| Pulse Rate (bpm) | 77.10 | 12.68 | 60.00 | 68.00 | 76.00 | 80.00 | 124.00 | 64.00 | 12.00 |
What measure of the center and spread should be used for the Pulse Rate data? The mean and standard deviation, or the Median and the IQR? Explain,
Solutions
Expert Solution
For the Pulse Rate data the measure of center and spread should be used are median and the Inter Quartile Range(IQR).
Since the distribution of the data is negatively skewed,
As median-Q1=76-68=8
Q3-median=80-76=4
Since the data have more spread below the median.
Therefore the mean and standard deviation will be affected by extreme observation.
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