The answer is positive 25 and negative 25
Answer:
The area of the sumo wrestling ring is 
Step-by-step explanation:
The circumference of the circular sumo wrestling ring is
, that means its radius
is:


Now once we have the radius
of the sumo wrestling ring we can find its area
by the following formula:

Putting in the value of
we get:

Therefore the area of the sumo wrestling ring is 
<h3>
Answer: 50</h3>
Work Shown:
5 green discs
7+5+2 = 14 discs total
5/14 is the probability of getting a green disc
(5/14)*140 = 50 green discs are expected if 140 trials are conducted.
Answer:
D. There is no association because the distribution of lunch preference is approximately the same among the pet groups.