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.
Answer:
second option
Step-by-step explanation:
I'm not sure how to explain but if you really need an explanation please message me
Answer: Plot 1
Step-by-step explanation:
#1 Find the median of the whole set
- since there are 31 data, it is odd, we just need to find the 16th data which is 73.
- the median is 73
#2 Find the median of Less than Q2
- since there are 15 data, it is odd, we just need to find the 8th data which is 64
- the median is 64
#3 Find the median of more than Q2
- since there are 15 data, it is odd, we just need to find the 8th data which is 84
- the median is 84.
-----------------------------------
Putting it back to the box and whisker plot, it will be plot 1
