A. The new standard deviation is $477. B. The new standard deviation is less than $27. C. The standard deviation is still $27. D. The new standard

Question

Here are the prices of five new skateboards, in dollars: 75, 82, 100, 120, 140.

The standard deviation is about $27.

If a sixth skateboard is added to the sample that has a price of $450, what happens to the standard deviation?

PLS HELP IV DONE THIS TEST 5 TIMES 

Answer 1

The standard deviation is 26.8849 ≈27.

If you add 450, then it increases. The new st. deviation is 143.53