WILL GIVE BRAINLIEST 20 POINTS Tennis balls are normally sold in groups of 3 in a pressurized container as shown below.

4

The diameter of the tennis balls and the inside of the container is the same and, in this example, is 2.6 inches. Assuming the balls touch each other and touch the top and bottom of the container, what is the approximate volume, in cubic inches, of the air inside the container that is not taken up by the tennis balls?

Select one:
A. 1.3π
B. 4.4π
C. 8.8π
D. 13.2π

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?