The Following Data Represent the Number of Flash Drives Sold $\alpha$

question 29

Essay

The following data represent the number of flash drives sold per day at a local computer shop and their prices.
a.Develop a least-squares regression line and explain what the slope of the line indicates.
b.Compute the coefficient of determination and comment on the strength of relationship between x and y.
c.Compute the sample correlation coefficient between the price and the number of flash drives sold. Use $\alpha$ = 0.01 to test the relationship between x and y.

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Definitions:

Concentration Gradient

The process by which molecules move through a solution or gas from an area of higher concentration to an area of lower concentration.

Diffusion Rate

The diffusion rate is the rate at which particles spread from areas of high concentration to areas of low concentration, influenced by factors such as temperature and particle size.

Molecular Weight

The sum of the atomic weights of all atoms in a molecule, indicating the mass of the molecule relative to the mass of a carbon-12 atom.

Aqueous Solution

A solution in which the solvent is water, commonly used in a wide range of chemical and biological processes.