what is a variable in statistics

Statistics
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what is a variable? in statistics

May 6th, 2015

The term variable is used in statistics to mean a number, characteristic or quantity that changes with time or takes different values at different situations. There are two basic types of variables namely independent and dependent


May 6th, 2015

You run a gizmo factory. Over the past year the average output of the factory is 480 gizmos and the standard deviation of that output is 10 units per day. In repeated random samples of size n = 40 days, the expected value of sample mean is:


May 6th, 2015

480/40

= 12

May 6th, 2015

answer is 480 :/

May 6th, 2015

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May 6th, 2015
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May 6th, 2015
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