# Students 34

Students were surveyed 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 is chosen at random:

**LEAVE ALL ANSWERS AS FRACTIONS**

a. ) Has at least one tattoo? =

b. ) Is between 30 - 50 years old? =

c. ) Is Age 18 - 29 AND has No tattoo =

d. ) Has at least one tattoo GIVEN they are between 30 - 50 years old? =

e. ) is between 18 - 29 years old, GIVEN they have at least one tattoo? =

f. ) Is between 18 - 29 years old OR has No tattoo? =

age | At least one tattoo | No tattoo | Row totals |
---|---|---|---|

Age 18 - 29 | 165 | 342 | 507 |

Age 30 - 50 | 64 | 484 | 548 |

Column Totals | 229 | 826 | 1055 |

What is the probability that a person is chosen at random:

**LEAVE ALL ANSWERS AS FRACTIONS**

a. ) Has at least one tattoo? =

b. ) Is between 30 - 50 years old? =

c. ) Is Age 18 - 29 AND has No tattoo =

d. ) Has at least one tattoo GIVEN they are between 30 - 50 years old? =

e. ) is between 18 - 29 years old, GIVEN they have at least one tattoo? =

f. ) Is between 18 - 29 years old OR has No tattoo? =

### Correct answer:

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