one aspect of the beauty of scenic landscape is its variability. The elevations (feet above sea level) of 12 randomly selected towns in the Finger Lakes Regions of Upstate New York are recorded here. 1117, 1360, 1009, 766, 1333, 1306, 577, 1144, 874, 658, 1306, 712.

Question

Find the mean? answer correct to the nearest whole number. Answer 1014???
Find the standard deviation? (Give your answer correct to the nearest whole number).
My responder said to use calculator and book, I did not understand it that is why I posted the question.

Answer 1

You can do it without either. Today I don't have time to check your calculation.

Find the mean first = sum of scores/number of scores

Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

I'll let you do the calculations.

Answer 2

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