Scatter Plots and Data

Which is a true statement about two numerical sets of data that have a negative association?

• As one variable increases, the other variable does not change.

• As one variable increases, the other variable increases.

• As one variable decreases, the other variable decreases.

• As one variable increases, the other variable decreases.

What type of association would you expect to see between the amount of fog in the sky and the distance that a pilot can see?

• Positive association

• Negative association

• No association

• There is not enough informatoin to tell.

Which variables would the scatter plot shown most likely represent?

• The number of siblings a person has and the person’s GPA

• The number of guests at a hotel and the total water consumption

• The total number of miles driven and the total gallons of gas used.

• The number of people at a concert and the total concession sales

Which scatter plot shows both positive and non linear association?

• 
• 
• 
• 

Which of the scatter plots below shows a stronger association, and why?

• Scatter plot B; it’s slope is positive.

• Scatter plot B; it does not have any data points that are outliers.

• Scatter plot A; it’s Slope is greater than B

• Scatter plot A; it’s points of data are closer together than B.

Write an equation in slope-intercept form for the trend line shown on the scatter plot shown.

• Y=-3/5x+40

• Y=5/3x+40

• Y=-5/3x+40

The table to the right shows the average temperature during the day and the number of snow cones sold for several weeks. Use the data to construct a scatter plot on a separate paper.

• construct the scatter plot on a separate paper to use as a reference for future questions

• 💁🏻

Which of the following is a conclusion that you can make based on the scatter plot you constructed.

• As the average temperature increases, the snow cone sales increase.

• As the average temperature increases, the snow cone sales decrease.

• As the average temperature decreases, the snow cone sales increase.

• There is no association between the temperature and the number of snow cones sold.

On the scatter plot you constructed, are there any outliers?

• Yes, week 10 is an outlier since it is the greatest data point.

• Yes, week 1 is an outlier since it is the lowest data point

• Yes, week 7 is an outlier since it does not fit the general trend of data

• No, there are not any outliers in the data.

A scatter plot was made to show the number of homes in a city based on the year. A trend line was drawn on the graph with the equation of y=84x+265 where x is the number of years since 1995 and y is the total number of homes in the town. Predict the number of homes in the town in 2014.

• 2221

• 16.54

• 2305