Question

Students in a high school statistics class responded to a survey designed by their teacher. One of the survey questions was “How much sleep did you get last night?” Here is a dotplot of the data:

Describe the shape of the distribution.
Symmetric with peaks at 6 and 7
Fairly symmetric with a single peak at 7
Left skewed with peaks at 6 and 7
Left skewed with a single peak at 7
Right skewed with a single peak at 7

Answer 1

The distribution is fairly symmetric with a single peak at 7, indicating that most students in the class reported getting around 7 hours of sleep, making option "Fairly symmetric with a single peak at 7" the correct description. The correct option is B.

The distribution of students' reported sleep duration in a high school statistics class is fairly symmetric, exhibiting a single prominent peak at 7 hours. This suggests that a significant number of students in the class typically get around 7 hours of sleep.

The symmetry implies a balanced distribution, with values tapering off similarly on both sides of the central peak. The dotplot reveals a concentrated pattern around 7 hours, reflecting a common sleep duration among the students surveyed. This descriptive analysis provides insights into the central tendency of sleep patterns, aiding in understanding the class's overall sleep habits.

The correct answer is B.