A) the correlation coefficient, r, is equal to the number of data points that lie on the regression line divided by the total number of data points.
b) the correlation coefficient gives us information about the number of outliers compared to the number of data points.
c) the correlation coefficient is a unitless number and must always lie between –1.0 and +1.0, inclusive.
d) the correlation coefficient, r, gives us information about the strength and direction of a linear relationship between any two variables.
e) if r is the correlation between two variables x and y then -r is the correlation between y and x.
f) the larger r is in absolute value, the stronger the relationship is between the two variables.
which statements are correct?

An appliance salesman sets a goal to sell an average of 6 appliances per day for the first two weeks of his new job. the dot plot shows the number he sold each day during the first 13 days. what is the minimum number of appliances he must sell on the 14th day in order to reach his goal? a) 5 b) 6 c) 7 d) 8

Hye ryung is the president of the local chapter of the american medical students association (amsa). she is organizing local outreach and informational meetings. at her first meeting there are five people present (including herself). every month after that her group grows by 5 people. a. how many members are in the group after 6 months? b. the logistics of hosting and feeding her group at meetings was more complicated than expected. the cost of feeding 5 people at her first meeting was $30, for 10 people it was $35, for 15 it was $45, and after 6 months all of the costs had added up to $100. write a function to model the cost with the number of people attending meetings. c. what connections can you make between the linear growth of the group’s membership and the increasing costs of running meetings?

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?