D. I and IV
From the dot plots, we can see that Exam 1 has a wider distribution of scores, indicating a greater standard deviation. Additionally, the means of the exams are very close to each other, differing by less than one percentage point.
The dot plots represent test scores for two different exams. Which of the statements are true?
I. Exam 1 has a greater standard deviation than exam 2.
II. Exam 1 has a greater median than exam 2.
III. Exam 1 has a greater interquartile range than exam 2.
IV. The means of the exams differ by less than one percentage point.
A.
I and III
B.
II and III
C.
II and IV
D.
I and IV
1 answer
1 answer