The article "Chances Are You Know Someone with a Tattoo, and He's Not a Sailor" included results from a survey of adults aged 18 to 50. The accompanying data are consistent with summary values given in the article.
At Least One Tattoo | No Tattoo | |
Age 18–29 | 24 | 26 |
Age 30–50 | 6 | 44 |
Assuming these data are representative of adult Americans and that an adult American is selected at random, use the given information to estimate the following probabilities.
(a) P(tattoo)
(b) P(tattoo | age
18–29)
(c) P(tattoo | age
30–50)
(d) P(age 18–29 |
tattoo)
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