Question

Which statement explains why the variability in Ms. Sim's scores is greater than in Ms. Chain's scores?

A) Ms. Sim's students are more consistent in their performance.
B) Ms. Sim's class has a wider range of test scores.
C) Ms. Chain's class has a wider range of test scores.
D) Both classes have the same level of variability.

Answer 1

The variability in Ms. Sim's scores is greater than in Ms. Chain's scores because Ms. Sim's class has a wider range of test scores.

Step-by-step explanation:

The statement that explains why the variability in Ms. Sim's scores is greater than in Ms. Chain's scores is B) Ms. Sim's class has a wider range of test scores.

Variability refers to the spread or dispersion of scores in a set of data. A wider range of test scores indicates a greater dispersion, or variability, in the performance of Ms. Sim's students compared to Ms. Chain's students.

For example, let's say Ms. Sim's class has scores ranging from 50 to 100, while Ms. Chain's class has scores ranging from 70 to 90. The range of test scores in Ms. Sim's class is greater, indicating a higher variability in performance compared to Ms. Chain's class.