To answer this question you will find the means and the mean absolute deviations and compare them.
The correct answers are
A and C.
Please see the attached picture for the organized work.
Answer:


Step-by-step explanation:
A) If AB is a diameter, Then ACB is a 90 degrees angle because In a semi-circle (AB is a diameter which divides the circle into 2 equal parts), the angle opposite to the diameter is of 90 degrees.
So, <ACB = 90 degrees
Then <a = 180-90-28
=> <a = 62 degrees
B) The opposite interior angles of a quadrilateral inscribed in a circle add up to 180 degrees.
So,
=> <a + <b = 180
=> <b = 180-62
=> <b = 118 degrees
We are taking one quarter of the 2/5 of the students who play sports.
one quarter of 2/5 is 2/20 or 1/10.
Answer:
3.39
Step-by-step explanation:
Using the formulas
A=πr^2
d=2r
Solving for d
![d = 2 \sqrt[2]{ \frac{a}{\pi} } = 2( \sqrt{ \frac{9}{\pi} } )](https://tex.z-dn.net/?f=d%20%3D%202%20%5Csqrt%5B2%5D%7B%20%5Cfrac%7Ba%7D%7B%5Cpi%7D%20%7D%20%20%3D%202%28%20%5Csqrt%7B%20%5Cfrac%7B9%7D%7B%5Cpi%7D%20%7D%20%29)
π≈3.38514
Answer:

Step-by-step explanation: