Unit 5 Scatter Plots & Data Analysis Lesson 5 Correlation Answers

Question

The quick check is
1 - The graph shows a positive linear association.
2 - The graph shows a negative association.
3 - time spent studying for an exam and the grade on the exam
4 - x 5,8,2,4,6,12,10,1,3,7 y 550,800,350,450,700,1000,900,250,400,750
5 - x 50,46,98,59,78,64,68,53,70,72 y 75,71,90,55,70,100,90,25,40,76
this is the portfolio Item
1 - The line of best fit would have a positive slope representing as income goes up, happiness goes up.
The y-intercept of the line of best fit would show a happiness score of around 40 when there is $0 income.
This is a moderate positive correlation.
2 - People who made more money generally completed more years of college than those who made less money.
3 - The one that has a dot at (35,20) (25,30) (45,30) (50,30) (60,45) (55,50) (50,60) (75,60) (80,60) and look like a sideways W.
4 - Positive, Weak Correlation
5 - The line must represent the general relationship between the two variables. and The line of best fit can, some times, be used as a prediction tool; showing a trend in the data.

Answer 1

6 - The scatter plot shows a negative correlation, as the x-values increase, the y-values decrease.
7 - The scatter plot represents the relationship between the number of minutes studying and the test score. As the number of minutes studying increases, the test score also tends to increase.
8 - The points on the scatter plot are spread out in a somewhat linear fashion, indicating a moderate positive correlation.
9 - The y-intercept of the line of best fit would show a happiness score of around 40 when there is $0 income.
10 - The scatter plot shows a weak positive correlation. As the x-values increase, the y-values also slightly increase, but it is not a strong relationship.
11 - The line of best fit represents the general trend or relationship between the two variables. It shows how the y-values tend to change as the x-values change. The line can also be used to make predictions about the y-values based on the x-values.

Answer 2

Bot wat u on bout..

Answer 3

I apologize if my response was unclear. In the given context of Unit 5 Scatter Plots & Data Analysis Lesson 5 Correlation, the answers provided are in reference to the quick check questions and the portfolio item.