Question 215027: Grace took a random sample of the number of steps per minute from the electronic readout of her aerobic climbing machine during a 1-hour workout. (a) Calculate the mean, median, and mode. (b) Which is the best measure of central tendency? The worst? 90 110 97 144 54 60 156 86 82 64 100 47 80 164 93
90 110 97 144 54 60 156 86
82 64 100 47 80 164 93
A plumbing supplier’s mean monthly demand for vinyl washers is 24,212
with a standard deviation of 6,053. The mean monthly demand for steam boilers is 6.8 with
a standard deviation of 1.7. Compare the dispersion of these distributions. Which demand
pattern has more relative variation? Explain.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Grace took a random sample of the number of steps per minute from the electronic readout of her aerobic climbing machine during a 1-hour workout.
(a) Calculate the
mean = 95.133....,
median = 90
mode = none
(b) Which is the best measure of central tendency? The worst?
best: mean
worst: mode
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A plumbing supplier’s mean monthly demand for vinyl washers is 24,212
with a standard deviation of 6,053.
---
Standard deviation is 1/4 of the mean.
---
The mean monthly demand for steam boilers is 6.8 with a standard deviation of
The standard deviation is more that 1/4 of the mean.
----
1.7. Compare the dispersion of these distributions.
Which demand pattern has more relative variation? Explain.
Comment: Strange question. You might compare the box-plots.
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Cheers,
Stan H.
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