The acidity or alkalinity of a solution is measured using pH. A pH less than 7 is acidic; a pH greater than 7 is alkaline. The accompanying data represent the pH in samples of bottled water and tap water. Complete parts (a) and (b).

a) Determine the mean, median, and mode pH for each type of water. Comment on the differences between the two water types.

Tap 7.64 7.45 7.48 7.52 7.68 7.93

7.45 7.22 7.56 7.48 7.52 7.48

Bottled 5.15 5.09 5.25 5.20 4.78 5.23

5.40 5.25 5.13 5.25 5.21 5.24

Select the correct choice below and fill in any answer boxes in your choice.

A.

For tap water, the mean pH is__________________

enter your response here.

(Round to three decimal places as needed.)

B. The mean does not exist

For the Bottled water the Mean pH is___________________

What is the median, mode, standard deviation for the tap water___________________

What is the median, mode and standard deviation for the Bottled water_________________