Number of Hamsters
The joint probability distribution of X and Y is shown in the accompanying table,where X denotes the number of hamsters that Quinn may have next year,and Y denotes the number of hamsters that her boyfriend,Jason,may have when she moves in with him next year. 
-{Number of Hamsters Narrative} Determine the marginal probability distributions of X and Y.
Definitions:
Normally Distributed
Describes a distribution of data where most observations cluster around the mean, forming a bell-shaped curve.
Standard Deviation
Standard deviation is a statistic that measures the dispersion or variability of a dataset relative to its mean.
Standard Deviation
A means to assess the degree of variability or scattering in a set of numerical values.
Z-score
An indicator that quantifies the position of a value relative to the average in a collection of values, by indicating how many standard deviations it is from the mean.
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