Algebra 1 Final Exam Review

Which measure of variability is most affected by outliers?

• Interquartile range

• Mean absolute deviation

• Variance

• Standard deviation

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

If a dataset has a large standard deviation what can we infer?

• The data has no outliers

• All the data values are the same

• The data values are spread out from the mean

• The median and mean are equal

What is the1.5 IQR rule used to determine?

• The spread of data around the mean

• Outliers in a data set

• The mean of the data set

• The mode of the data set

What does the slope of a linear equation represent?

• The origin point

• y-intercept

• Rate of change

• x-intercept

Tags

CCSS.8.EE.B.5

If the linear equation is y = 2x + 3, what is the y-intercept?

• 2x

• y

• 3

• 2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Given the linear model y = 5x - 4, what is the value of the slope?

• y

• -4

• 4

• 5

Tags

CCSS.8.EE.B.5

What is the slope of a linear model with the equation y = -x + 4?

• 4

• -1

• y

• 1

Tags

CCSS.8.EE.B.5

If a data set has a correlation coefficient (r) close to 1, how would you describe the strength of the linear relationship?

• No relationship

• Negative relationship

• Very strong

• Weak

What information does the slope of the line of best fit provide in terms of prediction?

• y-intercept

• Data spread

• r-value

• Rate of change

Tags

CCSS.8.EE.B.5

If the correlation coefficient (r) equals -0.8, what type and strength of relationship does it represent?

• Strong positive linear relationship

• Strong negative linear relationship

• Weak positive linear relationship

• Weak negative linear relationship

Tags

CCSS.HSF-LE.A.1B