Question

survey of 9th and 10th graders with siblings
which statements are correct about the two - way frequency table? check all that apply.
the survey represents quantitative data.
there is a greater percentage of 10th graders who do not have a sibling than 9th graders who do not have a sibling.
the total number of students in the poll who have a sibling is 116.
fifty - two 10th graders were polled.
more 9th graders were polled than 10th graders.

Explanation:

• Total students polled: \(156\) (from the table's total row).
• 9th graders: \(81\), \(10\)th graders: \(75\). So more 9th graders were polled (\(81>75\)).
• Percentage of 10th graders who do not have a sibling: \(\frac{23}{75}\approx 30.67\%\), percentage of 9th graders who do not have a sibling: \(\frac{17}{81}\approx 20.99\%\). So there is a greater percentage of 10th graders who do not have a sibling.
• Total number of students with a sibling: \(116\) (from the table).

Answer:

• More 9th graders were polled than 10th graders.
• There is a greater percentage of 10th graders who do not have a sibling than 9th graders who do not have a sibling.
• The total number of students in the poll who have a sibling is 116.