Comprehensive Review of Two-Way Frequency Tables
Review key concepts involving two-way frequency tables. Demonstrate understanding of joint, marginal, and conditional relative frequencies across multiple exercises.
Questions
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MultiChoice
Given: 8th graders (Math: 30, Science: 15). What is the joint frequency of 8th graders taking Math?
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MultiChoice
Given: 8th graders (Math: 30, Science: 15). What is the marginal row total for 8th graders?
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MultiChoice
Of 45 eighth graders (30 Math, 15 Science), what is the row conditional relative frequency for Math?
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MultiChoice
In a total sample of 100 students (30 eighth graders in Math), what is the joint relative frequency of eighth grade Math students?
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MultiChoice
Table missing value: 7th grade Math = 20, 8th grade Math = 30. What is the column marginal total for Math?
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MultiChoice
Out of 100 total students, 50 take Math. What is the marginal relative frequency of Math students?
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MultiChoice
Given 50 Math students (30 eighth graders, 20 seventh graders), what is the column conditional relative frequency of eighth graders?
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MultiChoice
66.7% of 8th graders choose Math vs 40% of 7th graders. Is grade level associated with choosing Math?
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MultiChoice
If total 7th graders = 50 and 20 take Math, how many take Science?
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MultiChoice
Out of 100 total students, 30 seventh graders take Science. What is the joint relative frequency of seventh grade Science students?
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MultiChoice
Sum of all joint frequencies in a survey of 95 students equals what number?
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MultiChoice
What is the primary purpose of a two-way frequency table?