Answer:
The second plot.
Step-by-step explanation:
In the picture attached, the scatter plots are shown.
The second plot has minimum residuals and its residuals are randomly distributed. Residual is computed as follows:
residual = measured - predicted
It easy to see that residuals of the first option are greater than the second option.
Line of the second option is better than those from third and fourth options because residuals of the second option are randomly distributed, while in the third option, residuals are mostly negative; and in the fourth option, they are mostly positive.
<h3>
Answers:</h3>
total number of pages = 550 pages
total amount of time to read the full book = 10 hours
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Work Shown:
1 hour = 55 pages
4 hours = 220 pages ... multiply both sides by 4
After 4 hours, he had read 220 pages. Since he has 330 still left to read, this brings the total to 220+330 = 550 pages overall
550/55 = 10 hours is the total amount of time needed to read the entire book at a rate of 55 pages per hour. This is assuming the rate is kept constant.
While 10 hours is a lot, it's somewhat plausible to get the full book read in one continuous session. Though he is better off taking (short) breaks every now and then.
