Tim is working on a school project exploring the amount of time his classmates spend doing homework. He selects a random sample of 20 students in his class and asks them this question, About how many hours do you spend on homework each
day? Their responses are recorded in the table.
1.25
2.25
2
1
1.25
2.25
0.75
2.75
1.75
3.5
2.5
0.5
0.75
1.75
0.75
0.5
1.75
2
3.25
3
What is the sample mean? What proportion of students in the sample spend less than 2 hours each day on homework?
Select the correct answer from each drop-down menu.
hours

part a: 1.08

part b: 27.59

it has to have an angle of 90 degrees

i’ll just s take the points thxs

let's first notice, the center of the hyperbola is at the origin, since the focus points are equidistantly 3 units away from the origin, that also means that the distance "c" from the center to either focus is 3.

it should also be notable that, the traverse axis for this hyperbola is vertical, or namely over the y-axis and therefore, the positive fraction will be the one with y-variable.

the traverse "a" component or distance from the center to either vertex is not 2, is more than 2, so we can safely put it at √5 ≈ 2.24.