Question

two science classes with the same number of students took a final exam. the box - and - whisker plots below (sometimes called boxplots) summarize the test scores for each class. use the box - and - whisker plots to answer the questions. (a) a score above 70 is considered passing. which class had more passing scores? (b) which class had a higher median test score? (c) which class had the highest test score? (d) which class had test scores with a larger interquartile range (iqr)?

Explanation:

Step1: Analyze passing scores

Since both classes have the same number of students, we look at the portion of the box - and - whisker plot above 70. For Class A, more of the data (the box and whisker) is above 70 compared to Class B.

Step2: Analyze median

The median is the line inside the box. Class A's median line is at a higher value on the test - score axis than Class B's.

Step3: Analyze highest score

The end of the whisker (or the outlier point) represents the highest score. Class A has a higher end - point on the test - score axis.

Step4: Analyze IQR

The IQR is the length of the box. Class A's box is longer than Class B's.

Answer:

(a) Class A
(b) Class A
(c) Class A
(d) Class A