Unit 3 Assessment Review

Which statement is true based on her scatter plot?

Hint: Use Desmos

• There is at least one outlier.

• There is a positive linear association.

• There is a nonlinear association.

• There is a negative linear association.

Which statements describe the pattern in the scatter plot?

Select TWO answer.

• There is a negative association in the data.

• There is a linear association in the data.

• There is a positive association in the data.

• There is a nonlinear association in the data.

What is the best interpretation of the scatter plot of the data collected?

• The scatter plots shows a weak, negative correlation between the plant dry mass and the number of seeds.

• The scatter plots shows a strong, negative correlation between the plant dry mass and the number of seeds.

• The scatter plots shows a weak, positive correlation between the plant dry mass and the number of seeds.

• The scatter plots shows a strong, positive correlation between the plant dry mass and the number of seeds.

Which graph shows the best linear model of the data in the scatter plot?

• 
• 
• 
• 

Select two statements that are true about the lines that Jaxon and Fisher fit to the data.

• The data points show a positive correlation and both Jaxon and Fisher fit an increasing linear function to the data.

• The data points show a negative correlation and both Jaxon and Fisher fit a decreasing linear function to the data.

• Jaxon's line models the data better than Fisher's line because all the data points fall on or below Jaxon's line.

• Fisher's line models the data better than Jaxon's line because Fisher's line is closer to more data points than Jaxon's line is

• Jaxon's line models the data better than Fisher's line because Jaxon's line actually passes through more data points than Fisher's line passes through.

Does Mia's model represent a good fit for the data? Explain why or why not.

• Yes, because the data shows a negative linear association among the data, and Mia's model is a decreasing linear function.

• Yes, because the data shows a positive linear association among the data, and Mia's model is a decreasing linear function.

• No, because the data shows a positive linear association among the data, but Mia's model is represents the best line of best fit.

• No, Mia's increasing linear function matches the positive association of the data, but the line is not close enough to all the data points.

In a linear scatter plot, which best describes an outlier?

• A

• B

• C

• D

A scatter plot suggests a negative linear association. Which could be the scenario represented by this scatter plot?

• A

• B

• C

• D

Which statement is true?

• A

• B

• C

• D

Which of the following conclusions about the points scored and hours practiced is best supported by the scatter plot above?

• The team needs to practice 5 hours a week.

• The team will score the most points if they practice 9.5 hours every week.

• When the team practiced more hours per week, they scored more points overall.

• There appears to be no relationship between the number of hours the team practices and the points they score.