Mathematics, 25.03.2021 09:30, jocelynm0611
Jimmy finds that there is a linear relationship between his number of zeros on assignments in math class (x) and his overall grade in math class(y) as a percent. He determines a linear regression and finds the following information:
y1~mx1+b
r2 = 0.80915
r = -0.979527
m = -1.9128
b = 99.3321
1. What is the slope of the line:? What does it mean in the context of the problem?
2.What is the y-intercept: ? What does it mean in the context of the problem?
3.If Jimmy has 6 zeros in math class, what should his overall grade be according to your model? Show ALL work and answer in a complete sentence. Round to the nearest whole number.
4.Given the options below, select the correlation coefficient and the statement that best describes what the correlation coefficient means in this scenario.
0.80915
-0.979527
The data is increasing, and the model is a strong fit.
The data is decreasing and the model is a strong fit.
The data is increasing, and the model is a weak fit.
The data is decreasing and the model is a weak fit.
Answers: 2
Mathematics, 21.06.2019 21:00, izaiahfieods
Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list
Answers: 1
Jimmy finds that there is a linear relationship between his number of zeros on assignments in math c...
Mathematics, 16.10.2019 20:00