Line of best fit quiz - day 1

QuizÂ by Andree Grove

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8 questions
• Q1
a line drawn in a scatter plot to fit most of the dots and shows the relationship between the two sets of data
independent variable
response variable
Line of best fit
correlation coefficient
30s
• Q2
A measure of the association between 2 variables. If 2 variables tend to move up or down together, they are said to be positively correlated. If they tend to move in opposite directions, they are said to be negatively correlated.
line of best fit
outlier
scatter plot
Correlation
30s
• Q3
A graph that illustrates the correlation between two or more variables. Positive correlations create these where the data forms a curve or line going up and negative correlations create curves on these that go down. Also called a scatter gram.
line of best fit
negative correlation
Scatter Plot
positive correlation
30s
• Q4
a positive one near 1.0 indicates two variable are positively related; a negative number indicates a negative relationship; zero indicates no relationship
negative correlation
scatterplot
outlier
correlation coefficient
30s
• Q5
A scatter plot that has a positive trend, or both variables either increase or decrease simultaneously
positive correlation
30s
• Q6
A scatter plot that has a negative trend, or one of the variables increases while the other variable decreases
negative correlation
outlier
independent variable
positive correlation
30s
• Q7
A scatter plot that has no trend, there is usually no relationship between the variables
positive correlation
looks like the sky
no correlation
negative correlation
30s
• Q8
In a set of data that has a trend, the points that are different from the trend.
outlier
scatter plot
correlation coefficient
line of best fit
30s

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