8/20 Standard Deviation

Mean is

Average

x̅ is

Mean

Mode is

the most frequent outcome

Median is

the number or outcome in the middle

Range

Largest Number - Smallest Number

Standard Deviation is

how varying the data set is

LOW standard deviation is

very little varying in data

HIGH standard deviation is

very large varying in data

Low standard deviation is

more preferable than high standard deviation

Low standard deviation is closer to

less than 2

High standard deviation is closer to

more than 2

We want a __ SEx (SE or SEM) outcome

low

Dependent Variable is the

one we measure

Independent Variable is the

one we change (the type of whatever)

In the evidence, you CANNOT forget

the word “Error Bars” and “95% confidence”

If it’s in the picure

you have to include it in the evidence