For the data set 10, -3, 4 8, the range rule of thumb is
A) 1.8
B) 1.5
C) 3.3
D) 2.2

Question

Quizplus · Accepted Answer

The range rule of thumb is calculated as follows:

Step 1: Find the range by subtracting the smallest value from the largest value: 
Range = Largest value - Smallest value = 10 - (-3) = 13

Step 2: Multiply the range by 0.33: 
Range rule of thumb = 0.33 x Range = 0.33 x 13 = 4.29

Since the rule of thumb suggests rounding to the nearest whole number, the answer is 4. Thus, the best choice is C.

For the Data Set 10, -3, 4 8, the Range