Standard Deviation Answers

The average January surface water temperatures (°C) of Lake Michigan from 2000 to 2009 were 5.07, 3.57, 5.32, 3.19, 3.49, 4.25, 4.76, 5.19, 3.94, and 4.34. | The mean value of these temperatures is 4.312. | What is the variance of this data set?

The average January surface water temperatures (°C) of Lake Michigan from 2000 to 2009 were 5.07, 3.57, 5.32, 3.19, 3.49, 4.25, 4.76, 5.19, 3.94, and 4.34. The data set has the following statistics:x = 4.3122 = 0.577What is the standard deviation? Round to the nearest thousandth.

The variance of this data set is .

The population standard deviation for this data set is .

The mean is .

The standard deviation is .

The data point 37 is one standard deviation from the mean.