1. The table below gives the number of hours spent studying for a science exam and the final exam grade. Study hours Grade 2 1 4. 3 77 92 70 63 90 75 84 a) Using graph paper, draw a scatterplot of the data. b) What is the equation for the line of best fit? Sketch this on your graph. Equation c) Predict the exam grade of a student who studied for 6 hours,. Grade expected d) Could this line go on forever? Why or why not?
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.
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Algebra 2
2.4: Line of Best Fit Worksheet
Name
_Block:
1. The table below gives the number of hours spent studying for a science exam and the final exam
grade.
Study hours
4
2
3
Grade
77
92
70
63
90
75
84
a) Using graph paper, draw a scatterplot of the data.
b) What is the equation for the line of best fit? Sketch this on your graph.
Equation
c) Predict the exam grade of a student who studied for 6 hours.
Grade expected
d) Could this line go on forever? Why or why not?
2. The table below gives the height and shoe sizes of six randomly selected men.
Page
1755
Height (in.)
Shoe size
67
66
85
95
11
13
火
->
&
%23
6.
7
8.
9.
%24](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7a7c201e-1fe6-45d8-9304-57e2f2f99222%2F9eeb86a0-bc65-43ac-857f-f1e76364e38c%2F9vosgw_processed.jpeg&w=3840&q=75)
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