Lesson 15
Where Are We Eating?
- Let’s use graphical representations to compare real-world scenarios.
15.1: Estimation: Marathon Runner 2
![Drawing of a runner at mile marker 20.](https://cms-im.s3.amazonaws.com/61yWA12mWfe2XkTc4nXBJ5ym?response-content-disposition=inline%3B%20filename%3D%22Marathon-02.png%22%3B%20filename%2A%3DUTF-8%27%27Marathon-02.png&response-content-type=image%2Fpng&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAXQCCIHWF3XOEFOW4%2F20240718%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240718T010541Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=46fe149ec4b3d110de9b0478d8a0d050c19ceed3b061ff7248b653849320d8aa)
How long will it take the marathon runner to finish the marathon?
- Record an estimate that is:
too low about right too high - Explain your reasoning.
15.2: Groups of Runners
These distributions represent marathon times for different groups.
A
B
C
- Which display is most likely to represent the marathon times for people aged 20–30? Explain your reasoning.
- Which display is most likely to represent the marathon times for every tenth person to cross the finish line? Explain your reasoning.
- Which display is most likely to represent the marathon times for people aged 40–50? Explain your reasoning.
15.3: Where Are We Eating?
Restaurant A
Restaurant B
Restaurant C
Restaurant D
Each histogram represents the number of star ratings for a different restaurant. The ratings range from 0–4, with 0 representing a very poor experience and 4 representing an excellent experience. For each question, explain your reasoning.
- Which restaurant do reviewers like the most?
- Which restaurant do reviewers like the least?
- Which restaurant received mostly mixed reviews?
- Which restaurant would you choose to try?