Find the range, variance and st. dev. Use the range rule of thumb and compare.

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Find the range, variance and st. dev. Use the range rule of thumb and compare it.

Time Stamps
0:00 Problem Statement
0:27 Range
1:59 Formula for variance
3:08 Creating the chart for the formula
4:46 Adding up the chart
6:07 Using the calc to find sums automatically
7:31 Plugging in the formula
8:35 Entering the formula in the calculator
9:53 Finding the standard deviation
10:38 Calculator method
12:04 Range rule of thumb

Tutor: Eric Burgess
  1. Citrus College STEM Center
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Time Stamps
0:00 Problem Statement

0:27 Range

1:59 Formula for variance

3:08 Creating the chart for the formula

4:46 Adding up the chart

6:07 Using the calc to find sums automatically

7:31 Plugging in the formula

8:35 Entering the formula in the calculator

9:53 Finding the standard deviation

10:38 Calculator method

12:04 Range rule of thumb

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