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To train for the running of a triathlon, Jerri jogs 1 hour each day over the same 9-mile course. Five miles of the course is downhill, whereas the other 4 miles is on level ground. Jerri figures that she runs 2 miles per hour faster downhill than she runs on level ground. Find the rate at which Jerri runs on level ground. __________ miles per hour
Statistical Measure
A quantitative value derived from a sample or population, used to summarize or describe characteristics of data.
Sample Mean
The arithmetic average of a set of sample observations, used as an estimate of the population mean.
Sample Median
The middle value in a sorted list of numbers from a selected sample, which divides the data into two equal halves.
Sample Mode
The value that appears most frequently in a data sample, representing the most common outcome.
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