2.An environmental researcher took 30 water samples from different areas of a lake. He measured the pH level of each water sample. The standard deviation for the 30 pH levels was about 1.4. What is the best interpretation of the standard deviation? GeoGebra Graphing Calculator a.The entire lake had a pH level that was about 1.4units. b.The pH level of any given water sample was about 1.4 units from the mean. c.The pH level of a typical water sample was about 1.4 units from the mean on average. d.The difference between the minimum and maximum pH levels was about 1.4 units

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.