7th Graders
24 / 35 / 27 / 86
Math
32 / 15 / 22 / 69
Science
11 / 12 / 13 / 36
Social Studies
19 / 11 / 20 / 50
Language Arts
86 / 73 / 82 / 241
Totals
Tackling 2 Way Tables 2A and 2B Key
6th Graders / 8th Graders / Totals7th Graders
24 / 27 / 86
Math
15 / 69
Science
11 / 13
Social Studies
19 / 20 / 50
Language Arts
82 / 241
Totals
Student Table 2B
Blue= given
Yellow= student needs to calculate
Sample Answers
A student is selected at random from Jamara’s school and asked about their favorite subject at school. What would you expect for them to choose? Explain your thinking.
I would expect their favorite subject to be math. I made this prediction based on our data collected in our sample. If I look at the row totals I see that shows most students prefer math.
A 6th grade student is selected at random from Jamara’s school and asked about their favorite subject at school. What would you expect for them to choose? Explain your thinking.
If a 6th grade student was selected, I would predict that their favorite subject to be science. I needed to look at my data differently for this question. The question is only asking about only 6th graders so I simple need to inspect the column for 6th graders.
What is the relative frequency for those who selected math as their favorite subject? Interpret the meaning in sentence form.
The total relative frequency for math is can be expressed as 86241, about .36 or about 36%. This relative frequency tells me that about 36% of the sample prefer math.
Is there an association between grade level and favorite subject? Explain your thinking in sentence form.
Accept answers that can be justified by the given data, including row and column relative frequency.