Answer:
I think it's 4 times 3 is the more number for 12.
Step-by-step explanation:
2008because there is no difference between the number of sold notebooks
Answer:
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
.
Answer:
First term of the sequence is 
Step-by-step explanation:
Let 
be the first term and 
be the common difference
We have
The sum of the second term and the ninth term of an arithmetic sequence is 
The sum of the third and fourth terms of the same sequence is 
eqn 1 - eq2
Substituting in eqn 1
First term of the sequence is
