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Which statistical tool is applicable in describing nominal variable?
Mean
What type of variable is gender?
Nominal (categorical), and Dependent (it is measured and accounted for, but a researcher cannot manipulate gender).
Why are none of the measures of variability appropriate for a nominal variable?
A nominal variable is where you assign a number to a category. Imagine a variable called "animal" where 1=sheep, 2=cow, 3=dog, etc. Calculating the average, standard deviation or other continuous measures of "animal" in this context wouldn't make any sense. That is, an average "animal" of, say, 4.567 with standard deviation of 1.234 doesn't mean anything. You could, however, calculate a mode, which is the most frequently occurring category.
When does it make sense not to connect points on a coordinate graph?
There are a number of situations when it does not make sense. Among these, the two main reasons are:The variable along the x-axis is nominal (categorical) or ordinal.The variable along the y-axis is not continuous.
Is work settings nominal or ordinal?
They are nominal.
