Haley fills a balloon with water until it becomes a sphere with a diameter of 5 centimeters. Approximately, how much water does the balloon contain? Use 3.14 for pi

Volume ≈ 65.42 units^3

Harlowe school district.
A. The school should choose High School B since they have the least standard deviation among the three schools indicating that they have the least difference from the required number of school days and their actual number of school days attended.
B. The school should choose High School C since they have the highest mean indicating that they have the highest average attendance among other schools.

Car preferences. S - sedan; H - hatchbacks
A.
   a (like S & H) = 15; b (not like S, like hatchbacks) = 25; c (total people who like H) = 40
   d (not like H, like S) = 10; e (not like S & H) = 50; f (total people who don't like H) = 60
   g (total of those who like S) = 25; h (total of those who don't like S) = 75; i (total customers) = 100

B. Percentage of people who neither like S & H = 50%

C. Based on the summary of data, there are more dislikes for Sedan (75%) than Hatchbacks (60%)

Correlation. 
A. Yes, the correlation coefficient is -0.99... The data fit well in a line as the shown in the attached picture. 
B. y = -2.25x + 95.27
C. The slope indicates that every additional hour of browsing, the math score decreases. If a student doesn't spend time on the internet, he/she will get an average score of 95.27 in math.