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Section 3.1 Measures of Central Tendency pH in Water: The acidity of alkalinity of a solution is measured...

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Basic Math

  1. Section 3.1 Measures of Central Tendency

pH in Water:

The acidity of alkalinity of asolution is measured using pH. A pH less than 7 is acidic; a pHgreater than 7 is alkaline. The following data represent the pH insamples of bottled water and tap water.

Tap

7.64

7.45

7.47

7.50

7.68

7.69

7.45

7.10

7.56

7.47

7.52

7.47

Bottled

5.15

5.09

5.26

5.20

5.02

5.23

5.28

5.26

5.13

5.26

5.21

5.24

  1. pH in Water:

Use the same pH data table in theabove question to answer the following.

  1. Which type of water has more dispersion in pH using the rangeas the measure of dispersion?
  2. Which type of water has more dispersion in pH using thestandard deviation as the measure of dispersion?

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