Students conducted a a survey as part of a Statistics project to determine if younger adults are more likely to have tattoos. The results are listed in the two-way table below: What is the Probability that a person chosen at random: Is between 18 - 29 years old OR has No tattoo?
Added by Amine B.
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Step 1: Calculate the total number of people in the survey, which is 1006. Show more…
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Here are the results of a survey that students conducted at a mall. The students conducted this survey as part of a statistics project to determine if younger adults are more likely to have tattoos. At least one tattoo No tattoo Row Totals Age 18 - 29 170 320 490 Age 30 - 50 60 445 505 Column Totals 230 765 995 If we randomly select a person in the sample, what is the probability that this person is 30 to 50 years old and has a tattoo? 0.12 0.26 0.06 0.46
Manisha S.
Students conducted a survey as part of their Statistics project to determine if younger adults are more likely to have tattoos. The results are listed in the two-way table below: At least tattoo No tattoo Row totals Age 18 182 338 520 Age 30 509 240 789 Column totals 691 578 1309 What is the probability that a person chosen at random: a) Has at least one tattoo? b) Is between 30 and 50 years old? c) Is between 18 and 29 years old AND has no tattoo? d) Has at least one tattoo GIVEN that they are between 30 years old? e) Is between 18 and 29 years old GIVEN that they have at least one tattoo? f) Is between 18 and 29 years old OR has no tattoo?
David N.
Here are the results of a survey that students conducted at a mall. The students conducted this survey as part of a statistics project to determine if younger adults are more likely to have tattoos. Tattoo Survey Summary At least one tattoo No tattoo Row Totals Age 18 - 29 170 320 490 Age 30 - 50 60 445 505 Column Totals 230 765 995 If we randomly select a person in the sample who is 30 to 50 years old, what is the probability that this person has a tattoo? 0.12 0.26 0.06 0.46
Katy G.
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