Describe the distributions of the two variables

Reference no: EM131394588

In an investigation of environmental causes of disease, data were collected on the annual mortality rate (deaths per 100,000) for males in 61 large towns in England and Wales. In addition, the water hardness was recorded as the calcium concentration (parts per million, ppm) in the drinking water.

a) What are the variables in this study? For each, indicate whether it is quantitative or categorical and what the units are.

b) Here are histograms of calcium concentration and mortality. Describe the distributions of the two variables.

1237_Graph 01.jpg

575_Graph 02.jpg

Reference no: EM131394588

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