a) For a randomly selected household, what is the probability that its annual income is less than $80,000? b) If a household is known to have an income of at least $20,000, what is the probability that its annual income is in the $60,000- under $80,000 category? c) Two households are randomly selected from those whose income is at least $40,000 per year. d) Given that the two household have incomes of at least $40,000 per year, what is the probability that both of these households are in the $80,000 or more category?
a) For a randomly selected household, what is the probability that its annual income is less than $80,000? b) If a household is known to have an income of at least $20,000, what is the probability that its annual income is in the $60,000- under $80,000 category? c) Two households are randomly selected from those whose income is at least $40,000 per year. d) Given that the two household have incomes of at least $40,000 per year, what is the probability that both of these households are in the $80,000 or more category?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 18HP
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. The following relative frequency distribution describes the household incomes for families living in a suburban community:
- a) For a randomly selected household, what is the probability that its annual income is less than $80,000?
- b) If a household is known to have an income of at least $20,000, what is the probability that its annual income is in the $60,000- under $80,000 category?
- c) Two households are randomly selected from those whose income is at least $40,000 per year.
- d) Given that the two household have incomes of at least $40,000 per year, what is the probability that both of these households are in the $80,000 or more category?
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