A water tank is constructed in the shape of a sphere seated atop a circular cylinder.If water is being pumped into the tank at a constant rate, let be the height of the water as a function of time.Which of the following is true at the point where b? 
Definitions:
Population Proportion
The fraction or percentage of the population that exhibits a specific attribute or characteristic.
Sampling Distribution
The probability distribution of a given statistic based on a random sample, reflecting how the statistic varies from sample to sample.
Standard Error
An estimate of the standard deviation of the sampling distribution of a statistic, especially of the mean.
Probability
The chance or likelihood that a particular event will occur, quantified as a number between 0 (impossible) and 1 (certain).
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