Question

on the final week of recording your jogging times, you also record your pulse rate just after finishing: 120, 116, 123, 125, 130, 114, 132. what is the iqr of your pulse rates? report to the nearest whole number and don't include units.

Answer 1

The interquartile range (IQR) of the pulse rates listed is 14 beats per minute, calculated by subtracting Q1 (116) from Q3 (130).

Step-by-step explanation:

To find the interquartile range (IQR) of your pulse rates, you would follow these steps:

1. Organize the pulse rates in ascending order: 114, 116, 120, 123, 125, 130, 132.
2. Determine the median (the middle value), which is 123 in this case.
3. Identify the lower quartile (Q1), which is the median of the first half of the data. For these pulse rates, Q1 is the median of 114, 116, 120, which is 116.
4. Identify the upper quartile (Q3), which is the median of the second half of the data. For these pulse rates, Q3 is the median of 125, 130, 132, which is 130.
5. Subtract Q1 from Q3 to get the IQR: IQR = Q3 - Q1 = 130 - 116 = 14.

Therefore, the IQR of your pulse rates is 14 beats per minute.