Understanding Stem and Leaf Charts

Miss Tate introduces stem and leaf charts, explaining their structure and how to interpret them using a key. She discusses the role of decimals in these charts and provides an example problem to illustrate the concept. The video emphasizes the importance of understanding the key to correctly interpret the data, whether as whole numbers or decimals.

What is the primary purpose of a stem and leaf chart?

• To calculate averages

• To compare two different data sets

• To solve algebraic equations

• To display data in a visual format

In a stem and leaf chart, what does the 'stem' typically represent?

• The hundreds place

• The decimal point

• The tens place

• The ones place

What is the function of the key in a stem and leaf chart?

• To show the total number of data points

• To indicate the scale of the chart

• To provide a legend for colors

• To explain how to read the numbers

If a key in a stem and leaf chart shows '1 | 5 = 15', what does '2 | 9' represent?

• 29

• 0.29

• 9.2

• 2.9

How does the key indicate that numbers in a stem and leaf chart are decimals?

• By using different colors

• By using a decimal point in the key

• By showing a range of numbers

• By listing numbers in ascending order

In the example problem, what is the range of possible scores?

• 0 to 10

• 0.1 to 5.0

• 1 to 5

• 1.0 to 10.0

What is the first step in solving the example problem involving subtraction?

• Add the numbers

• List the numbers in order

• Multiply the numbers

• Divide the numbers

What is the correct way to subtract decimals in the example problem?

• Add a zero to the smaller number

• Subtract without aligning

• Align the numbers by the left margin

• Align the numbers by the decimal point

What is the difference between the highest and lowest scores in the example problem?

• 4.3

• 3.7

• 2.5

• 1.8

Why is it important to double-check your work when subtracting decimals?

• To ensure the numbers are in the correct order

• To make the process faster

• To avoid common mistakes

• To use a calculator