A medical research project examined the relationship between a subject's weight and recovery time from a surgical procedure,as shown in the table below.
a.Use relative frequency to develop a joint probability table to show the marginal probabilities.
b.What is the probability a patient will recover in fewer than 3 days?
c.Given that recovery takes over 7 days,what is the probability the patient is overweight?
Definitions:
Sample Standard Deviation
A statistic measuring the dispersion or variability of a set of sample data points around the mean.
Population Standard Deviation
A measure of the dispersion or spread of all values in a population.
Sample Size
The number of observations or entities used in a study or experiment.
Measure of Variability
A statistic that describes the dispersion of data points in a dataset, such as range, variance, or standard deviation.
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