Question

Niran surveyed the students in his class on how many hours they spent on their project Here are the

results:
0.5, 1.0, 1.0, 1.0, 1.5, 2.0, 2.0, 2.0, 2.5, 3.0, 3.5, 3.5, 3.5, 4.0, 5.0, 6.0, 8.0, 10
Which of the following is the IQR of the dataset and explains what the value means for this dataset?
(1 point)
о
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project
for the middle 50% of the students.
The IQR is 2.5. This means that 2.5 hours is the range of the number of hours spent on the project for
the middle 50% of the students.
The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project
for 50% of the students.
The IQR is 2.5. This means that 2.5 hours is the range of the number of hours spent on the project for
50% of the students.

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct answer is:

The IQR is 2.75. This means that 2.75 hours is the range of the number of hours spent on the project for the middle 50% of the students.

This means that the middle 50% of students spent between 1.5 hours and 4.25 hours on the project, as the IQR is the difference between the 75th percentile and the 25th percentile in a dataset.