The slope would be -5/2
bc: you do the change in y over the change in x
so y2-y1 over (divided by) x2-x1
plug in the numbers for that
2-7 over 6-4
-5/2
final answer: -5/2
Y = x - 6
Please let me know if you need explanation.
multiplication is for example 10×500=5,000
division is for example 5,000÷10=500
Answer:
Actual mean: 223 pages
Predicted mean / estimate: 225 pages
Explanation below
Step-by-step explanation:
Mean = total amount ÷ # of numbers
155 + 214 + 312 + 198 + 200 + 170 + 250 + 260 + 215 + 256
Add
2,230
# of numbers = 10
2,230 ÷ 10 = 223
The exact mean is 223
If I were to predict the mean, I would say that a good estimation would be around 225, because I see that the highest number in the data set is 312, and the lowest is 155. If 312 is rounded down to 300, and 155 is rounded down to 150, the number exactly in the middle of 300 and 150 is 225.
Actual mean: 223 pages
Predicted mean: 225 pages
Hope this helps :)