MathLab with Mr. Ahmed

MathLab with Mr. Ahmed is a math learning website by Ahmed Amasha, a mathematics teacher teaching the American curriculum. Explore Algebra 2, Precalculus, Calculus, and SAT and PSAT Math Prep through lessons, focused practice and printable resources.

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Spread and standard deviation

Question 1 of 3

Know the idea

Data set PP: 33,38,42,24,2833, 38, 42, 24, 28
What is the range of data set PP?
Worked example
Range == greatest value −- least value =42−24=18= 42 - 24 = 18.
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A data set has a standard deviation of 55. A new data set is formed by adding 66 to every value. What is the standard deviation of the new data set?