Answered: John Snow, an English physician, has…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Introduction

Section: Chapter Questions

Problem 31P: (a) About how many microorganisms are found in the human intestinal tract? (A typical bacterial...

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John Snow, an English physician, has observed that disease is becoming more prevalent in a local neighborhood and he wants to know why. He collects information about the local people, including how many family members contracted the disease and where they live. John discovers that the disease is most common in homes located closest to the town’s water pump. John contrives an explanation: that the illness is waterborne and people are contracting the disease from water they retrieve from the town’s water pump. After petitioning the authorities, the handle at the pump is removed. John collects data about disease incidence and finds that occurrence of the disease is greatly reduced. John concludes that the water from the pump was causing the illness.

What step(s) of the scientific method is/are missing from Data Table 1? Describe each and propose a way that they might be fulfilled in the scenario?

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