The number of runs up and down for the data above is:
A)3
B)4
C)5
D)6
E)none of these

Name: The number of runs up and down for the data above is: A)3 B)4 C)5 D)6 E)none of these
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Question

Quizplus · Accepted Answer

A run is a sequence of consecutive data points that are either all increasing or all decreasing. In the given data, there are five runs: 
1) 4, 6, 7 (increasing) 
2) 7, 6, 4 (decreasing) 
3) 4, 5, 8 (increasing) 
4) 8, 7 (decreasing) 
5) 7, 9, 10 (increasing)

Therefore, the number of runs up and down is 5.

The Number of Runs Up and Down for the Data