Question

use the magnitudes (richter scale) of the 120 earthquakes listed in the accompanying data table. use technology to find the range, variance, and standard - deviation. if another value, 7.50, is added to the data set, do the measures of variation change much? click the icon to view the table of magnitudes. without the extra data value, the range is . (type an integer or decimal rounded to three decimal places as needed.)

Explanation:

Step1: Recall range formula

Range = Maximum value - Minimum value

Step2: Find maximum and minimum from data

By looking at the data - table of magnitudes, the maximum value is 4.73 and the minimum value is 1.01.

Step3: Calculate the range

Range = 4.73 - 1.01 = 3.72

Answer:

3.72