A researcher wants to know if hair color is associated with intelligence. To this end, the researcherrecruits 58 blonds and 59 brunettes. The researcher then assesses each person’s intelligence and comesup with the following results. In the blond group, there are 30 with below-average intelligence, 15 withaverage intelligence, and 13 with above-average intelligence. In the brunette group, there are 25 withbelow-average intelligence, 17 with average intelligence, and 17 with above-average intelligence.The expected frequency for the Blond and Above-average intelligence group was?And the expected frequency for the Brunette and Average intelligence group was?
A researcher wants to know if hair color is associated with intelligence. To this end, the researcherrecruits 58 blonds and 59 brunettes. The researcher then assesses each person’s intelligence and comesup with the following results. In the blond group, there are 30 with below-average intelligence, 15 withaverage intelligence, and 13 with above-average intelligence. In the brunette group, there are 25 withbelow-average intelligence, 17 with average intelligence, and 17 with above-average intelligence.The expected frequency for the Blond and Above-average intelligence group was?And the expected frequency for the Brunette and Average intelligence group was?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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A researcher wants to know if hair color is associated with intelligence. To this end, the researcher
recruits 58 blonds and 59 brunettes. The researcher then assesses each person’s intelligence and comes
up with the following results. In the blond group, there are 30 with below-average intelligence, 15 with
average intelligence, and 13 with above-average intelligence. In the brunette group, there are 25 with
below-average intelligence, 17 with average intelligence, and 17 with above-average intelligence.
The expected frequency for the Blond and Above-average intelligence group was?
And the expected frequency for the Brunette and Average intelligence group was?
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