Answer:
parallel: -1
y - 7 = -(x + 1)
y - 7 = -x - 1
y = -x + 6
Step-by-step explanation:
The graph will be discrete because there is no such thing as a partial person to sign up and the booth is set up once each day for sign ups. So the last answer choice is the right one
Answer:
≈50.6
Step-by-step explanation:
Not sure what precision level this problem is looking for, but for right-skewed distributions, we know that the mean is going to be pulled right and therefore the mean should be larger than the median. To a high confidence level, the mean should fall between 50 and 59, or in the third column.
If a single estimation is wanted, assume the values inside each column are uniformly distributed:

Traveling : total
8 : 25
x : 400
25 x 4 = 400 so 8 x 4 = 40 so the answer is 40.