The study time in minutes and the exam scores were obtained and graphed in the scatterplot. Then the least squares line was calculated. e = 1.04 t + 38.4 100+ 90 80 70 60 10 20 30 40 50 60 50+ Study Time, t [minutes] Using the equation, predict the exam score for a student who studies for 31 minutes. Round to the nearest point. 71 o points Find the error (distance) between the point (38, 73) and the line. | 4.92 Find the percent difference between the estimate (line) and actual (point) values. [Don't enter the percent sign.] -6.73 Tsjuod] ə 'ato8 uDxy
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
![The study time in minutes and the exam scores were obtained and graphed in the scatterplot. Then
the least squares line was calculated.
e = 1.04 t + 38.4
%3D
100-
90
80
70
60
10
20
30
40
50
60
50+
Study Time, t [minutes]
Using the equation, predict the exam score for a student who studies for 31 minutes. Round to the
nearest point.
71
o points
Find the error (distance) between the point (38, 73) and the line.
4.92
Find the percent difference between the estimate (line) and actual (point) values. [Don't enter the
percent sign.]
-6.73
Exam score, e [points!](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77c9e407-a0ed-4ed2-91c5-7cb7be223686%2F0f4d43b2-67aa-4dcf-9b2f-4e7452338e64%2Fsv0lxfn_processed.png&w=3840&q=75)
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