10. An Archeological Find, again An article in Archaeometry described 26 samples of pottery found at four different kiln sites in the United Kingdom.8 The percentage of iron oxide in each of five samples collected at the Island Thorns site was as follows:

a. Calculate the range.

b. Calculate the sample variance and the standard deviation using the computing formula.

c. Compare the range and the standard deviation.
The range is approximately how many standard deviations?

Transcribed Image Text:

1.28 2.39 1.50 1.88 1.51