## Here again are the results of a survey that students conducted at a mall. The students conducted this survey as part of a statistics project

Here again 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 Which proportions are most useful in analyzing the relationship between age and tattoos? Group of answer choices 170 / 230 and 60 / 230

## Answers ( )

Answer:1. 170/490 and 60/505

2. 320/490 and 445/505

Step-by-step explanation:No options were given, but the question can still be answeredGivenRequiredWhich proportion best compares age and tattoos?

The row data represents the age range of each group while the column data represents the amount of tattoo by each group.So, to make comparison:You simply pick a cell data and compare it to the row total.

Take for instanceFor those who have at least 1 tattoo. The proportion to use are:170/490 — For age range: 18 – 2960/505 — For age range: 30 – 29For those without tattoo. The proportion to use are:320/490 — For age range: 18 – 29445/505 — For age range: 30 – 29