Use the seven running distances supplied in Julie’s classroom exercise. The distances are in miles.
Find the mean, median, and range with XYZ Crunch, then report the answers to hundredths.
Start with an empty table. Open Quick Entry and enter all seven supplied values in their source order.
Enter ten point seven, fifteen point three, thirteen point nine, and twenty two point five.
Then enter eight point three, fourteen point one, and twenty three point three. Choose Add.
Check every value against the exercise. List one must contain exactly seven observations.
The unit for every observation is miles. The source context supplies that unit.
Open Descriptive statistics. Use One Variable Stats with list one, which contains seven values.
Before calculating, decide how the mean, median, and range describe this data set.
[Eight-second silent thinking pause; native pre-calculation frame held. No result is visible.]
Choose Calculate Statistics. Crunch displays the mean, median, and range.
The displayed mean is fifteen point four four two eight five seven.
The displayed median is fourteen point one zero zero zero zero zero.
The displayed range is fifteen point zero zero zero zero zero zero.
These six decimal places are display formatting. They do not add precision to the supplied observations.
Check the source data audit: seven source rows, seven used, and zero omitted.
The audit belongs to the last calculation. Download the native workspace to retain the exact input.
The exact mean is the sum, one hundred eight point one, divided by seven.
For this classroom exercise, report the mean as approximately fifteen point four four miles.
Order the seven distances from least to greatest. The fourth value, fourteen point one, is the median.
Report the median as fourteen point one zero miles for this exercise’s two decimal place convention.
Subtract the minimum, eight point three, from the maximum, twenty three point three. The range is fifteen.
Report the range as fifteen point zero zero miles. The range measures spread; it is not an average.