Anchor+A1.2.3.2

=A1.2.3.2 - Use data displays in problem-solving settings and/or to make predictions.= =Key Vocabulary: = = = =A1.2.3.2.1 Estimate or calculate to make predictions based on a circle, line, bar graph, measures of central tendency, or other representations.= Vy asked 200 students to select their favorite sport and then recorded the results in the bar graph below. Vy will ask another 80 students to select their favorite sport. Based on the information in the bar graph, how many more students of the next 80 asked will select basketball rather than football as their favorite sport? A. 10 B. 20 C. 25 D. 30 Answer: D

=A1.2.3.2.2 Analyze data, make predictions, and/or answer questions based on displayed data (box-and-whisker plots, stem-and-leaf plots, scatter plots, measure of central tendency, or other representations.= The points scored by a football team are shown in the stem-and-leaf plot below.

What was the median number of points scored by the football team? A. 24 B. 27 C. 28 D. 32 Answer: A

=A1.2.3.2.3 Make predictions using the equations or graphs of best-fit lines of scatter plots.= John recorded the weight of his dog Spot at different ages as shown in the scatter plot below.

Based on the line of best fit, what will be Spot’s weight after 18 months?

A. 27 pounds

B. 32 pounds C. 36 pounds D. 50 pounds Answer: C

=Additional Resources:= PDESAS Algebra I Module 3 Resources - Descriptive Statistics Khan Academy Videos - Statistics