Understanding Linear Regression Concepts
Interactive Video
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial math mark if a student studies zero hours per day?
20
70
35
50
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation form is used in Grade 12 statistics for linear regression?
y = mx + c
y = ax + b
y = a + bx
y = bx + a
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What tool is primarily used to calculate the linear regression equation in Grade 12 statistics?
Manual calculation
Calculator
Computer software
Graph paper
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a student studies for 5.5 hours, what is their predicted math mark?
100%
70.5%
85.2%
92.39%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the predicted number of study hours if a student scores 70%?
2.5 hours
3.79 hours
5 hours
6 hours
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does an r value of 0.998 indicate about the correlation?
Weak correlation
No correlation
Average correlation
Strong correlation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is considered a strong correlation in terms of r value?
0.5 < r < 0.8
r = 0
r < 0.5
r > 0.8
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