D. There is no association because the distribution of genre preferences is the same among the grade groups
Explanation:
Based on this graph, we can conclude that there is no association between grade and genre preference, because the distribution of genre preferences is the same among the grade groups
.
We can see that the 9th and 11th graders have a slightly higher preference for fiction than the 10th and 12th graders. However, this difference is barely noticeable and doesn't affect the conclusion. Most students from every grade prefer fiction to nonfiction, so we can conclude that the genre preference is the same among the grade groups
.
You can see that one of the rings was originally $24 and on sale it is $18 which is 3/4 or 0.75 of 24. Then if you check that relationship with the other ones where you take the orginal price and find 3/4 or 0.75 of it you get all of the sale prices.
