Answer
Who- researchers, 54 bears
What- trying to estimate the weight of bears
When- not specified
Where- in the woods
Why- to make it easier weight from other, more easily determined quantities
How- using easier to measure quantities
Variable- Weight
Type- Quantitative
Units- Pounds
Variable- Neck Size
Type- Quantitative
Units- meters, feet, inches etc.
Variable- Length
Type- Quantitative
Units- meters, feet, inches etc.
Variable- Sex
Type- Categorical
Work Step by Step
W's are found from reading the problem
Weight, neck size, length all have units so they must be quantitative. Sex does not have units so it must be categorical.