Explore - Standard Deviation Unplugged Preview CT-STEM

What happens when we add data points?

Please answer the questions below.

Question 4.1

If we added the value "1" to our set, what effect would it have on the sample standard deviation? Why?

(If you're not sure, use your procedure or graphing calculator and find the new standard deviation with this point added.)

Question 4.2

If we added the value "20" to our set, what effect would it have on the sample standard deviation? Why?

(If you're not sure, use your procedure or graphing calculator and find the new standard deviation with this point added.)

Question 4.3

If we added the value "9" to our set, what effect would it have on the sample standard deviation? Why?

(If you're not sure, use your procedure or graphing calculator and find the new standard deviation with this point added.)

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