Question

The ages and grades of some of the 17 girls on a club soccer team are

shown in the table.
15 years old
16 years old
0
2
9th grade
10th grade
10
Which two-way frequency table correctly shows the marginal frequencies?

A. 9th grade, 15 years old: 2. 16 years old: 0. total: 2. 10th grade, 15 years old: 15. 16 years old: 10. total: 25. total, 15 years old: 17. 16 years old: 10. total: 27.

Answer 1

The answer is D.

Explanation:

Answer 2

• Table D

Explanation:

Looking at the tables, we observe that:

• A. Total number is 27, but should be 17 ⇒ incorrect
• B. First column total is wrong; 2 + 5 = 10 ⇒ incorrect
• C. Total is 19, but should be 17 ⇒ incorrect
• D. All look correct