\"Name and calculate the MOST APPROPRIATE measure of variability for each of the

Question

"Name and calculate the MOST APPROPRIATE measure of variability for each of the following variables. Provide justification for your choice"

Room number: measure of variability:

Physician: measure of variability:

Patient condition: measure of variability:

Length of stay: measure of variability:

Patient Room Physician condition Len of stay. Carter, M. 202 Pollock Critical 8 days Levin... 203 Meclare Fae 4 days Fox, J. 203 Lench Good 5 days Garcia, L 205 Lench Fair 7 days Arluke, A 201 Pollock Serious 2days Parodi, 20 MoClare Good Starke D. 204 Leech 5 days pollock critical day E204 I Loftus Serious 2 days

Explanation / Answer

For nominal variables, you can only use IQV (index of qualitative variation).

Physician: measure of variability: IQV (index of qualitative variation).

Patient condition: measure of variability: IQV (index of qualitative variation).

For ordinal variables, you can calculate the IQV or the IQR (inter-quartile range). The IQR provides more information about the variable.

Room number: measure of variability: IQR (inter-quartile range)

For quantative variable, you can use IQV, IQR, or variance/standard deviation. The standard deviation (also variance) provides the most information, since it uses all of the values in the distribution in its calculation.

Length of stay: measure of variability: standard deviation

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