Answer:
C
Step-by-step explanation:
C is the correct answer because it represents exactly what the graph shows with the bold lines.
As you can see in the graph, there is no interception between 7 and 12. Therfore, the answer can't be B(because it represents the area between the two numbers).
A isn't the correct answer either because it represents a dot, which is obviously not the case here since there is no dot.
I can't explain why C isn't the right answer, but I hope that explanation that I gave is enough for you to understand ;)
(If you have any questions about the way I solved it, don't hesitate to ask me in the comments, and if you find my answer helpful - consider marking it Brainliest ÷) )
Answer:
0.67; The least-squares regression line, given by ŷ = 3.95 + 0.67x, is not a good fit for the data.
Step-by-step explanation:
Plot the data in a spreadsheet and insert a trendline. The line of best fit is y = 0.67x + 3.95. The r² value is 0.67.
Inter portal range of 4th period box plot is higher than the 2nd period of box plot. The 4th period class should get the reward.
<h3>
What is box plot?</h3>
Box plot is the way of representation of data which gives the graphical image of the data set to understand better.
The minimum and the maximum values in the box plot is plotted at the end points.
Given information-
Box plot labeled 2nd period with min at 77, Q1 at 78, median at 89, Q3 at 92, max at 100.
Box plot labeled 4th period with min at 72, Q1 at 82.5, median at 89, Q3 at 96, max at 97. 5.
From the box plot we can see the points as,
- The maximum score of the 2nd period class is 77 and the 4th period class is 72, but this does not show the better performance of the class.
- The maximum score of the 2nd period class is 100 and the 4th period class is 97.5, but this does not show the better performance of the class.
- Median for both the class is same which is 89.
- The inter portal range of the box plot of 4th period is higher than the 2nd period box plot. Thus 4th period class performed better.
Hence, the 4th period class should get the reward. Though the medians are the same, the first and third quadrilles are higher, so the students did better on average than in the 2nd period class.
Learn more about the box plot here;
brainly.com/question/14277132
Answer:
the answer is 77
Step-by-step explanation:
The value of x is -3, or x= -3
