Question 13
9 pts
The image below shows the data points for the number of Marriages in the U.S. for a given year. Excel has calculated a trendline equation of y=-13.837x+29972 for this data.
Use the trend line equation to estimate the number of marriages in 2015. Do not include a label. 2 points
Write a sentence that compares the equation's value with the actual value for 2015.
1 point
Interpret the meaning of the slope of the trend line in a meaningful sentence. 3 points
Classify the correlation as either weak, moderate, or strong. 1 poin
Should we use this model to predict how many marriages there will be in 2025? Why or Why not? 2 points
Question 13
9 pts
The image below shows the data points for the number of Marriages in the U.S. for a given year. Excel has calculated a trendline equation of y=-13.837x+29972 for this data.
Number of Marriages2000-2015
2,350 2,300 2,250
y=-13.837x+29972 R2=0.624
2,200
2,150 2,100 2,050 2000
2005
2010
2015
Year
Use the trend line equation to estimate the number of marriages in 2015.Do not include a label.2
points
Write a sentence that compares the equation's value with the actual value for 2015.
1 point
Interpret the meaning of the slope of the trend line in a meaningful sentence. 3 points
Classify the correlation as either weak,moderate,or strong.1 point
Should we use this model to predict how many marriages there will be in 2025? Why or Why
not?2 points