Fear of the dentist (or the dentists chair) is an emotion felt by many people of all

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Fear of the dentist (or the dentist€™s chair) is an emotion felt by many people of all ages. A survey of 100 individuals in five age groups was conducted about this fear, and these were the results:
Fear of the dentist (or the dentist€™s chair) is an

a. Find the marginal totals.
b. Express the frequencies as percentages of the grand total.
c. Express the frequencies as percentages of each age group€™s marginal totals.
d. Express the frequencies as percentages of those who fear and those who do not fear.
e. Draw a bar graph based on age groups.

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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