A College Lecturer Has Devised a New Method of Teaching

question 15

Essay

A college lecturer has devised a new method of teaching a particular mathematical concept and wishes to try out this teaching method on a representative sample of his students. There are 76 students in his class and he wishes to obtain a simple random sample of 25 of them. Describe a method he could use to obtain the sample.

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Definitions:

Rheumatic Fever

An inflammatory disease that can develop as a complication of untreated or poorly treated strep throat or scarlet fever.

Nephritis

Inflammation of the kidneys, which can alter their function and cause varying degrees of illness.

Endocardium

The innermost layer of the heart.

Arthritis

A general term meaning joint inflammation.