Probability Problem
Not what you're looking for?
Epidemiologists at a medical center in the Northeast are interested in the etiology of anthracosis ("Black lung" disease), caused by the inhalation of coal dust. All the coal miners in a particlar cummunity were screened and classified according to their length of employment in the coal mines and whether symptoms of anthracosis were present. The results are in a table 1 in file #1.
Suppose a coal miner is selected at random from this community, and his length of employment and presence or absence of symptoms are noted. a. List the simple events for this experiement. b. Let B be the event that the worker has symptoms of anthracosis. Find P(B). c. Let C be the event that the worker has spent at least 3 years in the mines. Find P(C). d. Let D be the event that the woker has spent less than 3 years in the mines and has no symptoms. Find P(D).
Purchase this Solution
Solution Summary
This solution explains probability and then the solution is explained in full. Supplementary resources of other examples are also provided.
Solution Preview
This problem deals with a probability. A probability provides a quantitative description of the likely occurrence of a particular event.
Probability is conventionally expressed on a scale from 0 to 1; a rare event has a probability close to 0, a very common event has a probability close to 1. ...
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.