1. Determine whether tne pattern of a scatter plot between the two variables in
ID: 3337611 • Letter: 1
Question
1. Determine whether tne pattern of a scatter plot between the two variables in cach example would have a positive slope, negative slope, or not follow a straight line pattern. (2 pt each) a. The temperature outside and the amount paid on a heat bill b. The amount of food a person eats and their hunger level c The amount of time money is invested and the amount of interest carmed d. The number of years of education of a person and their earning potential e. The speed of a biker and the amount of time it takes the biker to get to the finish line atic 2· The table below shows outside daily temperatures in degrees Celsius along with ice cream sales fr those days. (degrees C) 185 2151332- 325 408 421 406 t 412 522 445144 1614 Sales Construct a scatter plot for the data given. (6 pt) a. b. Does there appear to be a linear relationship between the femperature outside and ice cream sales? If so, what kind of relationship? (4 pt) Use your graphing calculator to find the value of the correlation coefficient. Then make a statement about what sales. (4 c. ells you about the relationship between outside temperature and ice cream 3Explanation / Answer
1. Negative correlation is a relationship between two variables in which one variable increases as the other decreases, and Positive correlation is a relationship between two variables in which one variable increases as the other increases.
Based on this answers are below:
a. As temperature increases heat bill will decrease, so it is negative
b. If a person eats food his hunger will go down, hence it is again negative
c. More you invest more you will get interest, so positive
d. As we know an educated person can earn bread and butter and so number of years of education and earning potential are positively correlated
e. More the speed soon he will finish his final line, so positive.
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