# Lesson 3

Which One?

• Let’s explore the best uses of box plots, dot plots and histograms.

### 3.1: Math Talk: What Was the Final Temperature?

Mentally evaluate the final temperature in each scenario.

The temperature was 20 degrees Celsius and it dropped 18 degrees.

The temperature was 20 degrees Celsius and it dropped 20 degrees.

The temperature was 20 degrees Celsius and it dropped 25 degrees.

The temperature was 20 degrees Celsius and it dropped 33 degrees.

### 3.2: Best Representation

Use the class data to create a dot plot, box plot, and three histograms, each with different bin sizes.

1. Create a dot plot.

2. Create a box plot.

3. Create a histogram using intervals of length 20.

4. Create a histogram using intervals of length 10.

5. Create a histogram using intervals of length 5.

6. Which of these representations would you use to summarize your class’ data: the dot plot, the box plot, or one of the histograms? Explain your reasoning.

### 3.3: Which One?

There are several baskets on a table, and each basket contains a certain number of strawberries. Here are three data displays showing the number of strawberries in each basket.