Sunshine and Melanoma a Medical Researcher Wanted to Examine the Relationship

question 162

Essay

Sunshine and Melanoma A medical researcher wanted to examine the relationship between the amount of sunshine ( x )in hours, and incidence of melanoma, a type of skin cancer ( y ). As an experiment he found the number of melanoma cases detected per 100,000 of population and the average daily sunshine in eight counties around the country. These data are shown below. {Sunshine and Melanoma Narrative} Draw a scatter diagram of the data and plot the least squares regression line on it.

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Definitions:

Required Reserve Ratio

The fraction of deposits that regulators require a bank to hold in reserves and not lend out.

Money Supply

The sum of all financial resources in the form of cash, coins, and amounts in checking and savings accounts present within an economy at a given moment.

Government Securities

Financial instruments issued by a government to finance its expenditures, including bonds, bills, and notes.

Commercial Banking System

A network of financial institutions that accept deposits, offer loans, and provide other financial services to the public and businesses.