To plot: The stem plot for the data of resting pulse rates of members in the class.
The stem plot of the collected data is shown below
Concept used:
The stem plot is used to display a distribution in the graphical form of stem and leaves to study the shape of the distribution.
Calculation:
The data collected the resting pulse rates (beats per minute) for 25 students as shown below
92 | 64 | 96 | 92 | 68 | 70 | 95 | 99 | 75 | 88 |
86 | 65 | 76 | 98 | 97 | 79 | 95 | 60 | 63 | 64 |
70 | 75 | 99 | 93 | 93 |
The values of resting pulse rates (beats per minute) of 25 students range between 60 to 99, the leaf takes the unit’s place and the digit in ten’s place is written in the stem. For example, the key is
Interpretation:With reference to the stem plot, the data is skewed to the left, and considering the fact that the usual resting heartbeat ranges from 60 beats per minute to 100 beats per minute, there are no outliers in the collected data and it suggests that there are no abnormal heartbeats among the class students.
Chapter 10 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
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