Decoding Stem-and-Leaf Plots

In this video, Mr. J explains how to read a stem and leaf plot using an example of student ages in a cooking class. He breaks down the components of the plot, explaining the roles of stems and leaves, and provides a key for understanding the data. The video includes examples to illustrate how to interpret the plot, making it easier to understand and analyze data using this method.

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

• To organize and display data

• To draw graphs of functions

• To solve algebraic expressions

• To calculate complex equations

In a stem and leaf plot, what does the stem represent?

• The ones place of numbers

• The tens place of numbers

• The hundreds place of numbers

• Decimal values

What does a leaf in a stem and leaf plot represent?

• The hundreds place of numbers

• The ones place of numbers

• The tens place of numbers

• Decimal values

What is the correct interpretation of the key in a stem and leaf plot?

• It shows how to calculate sums

• It explains how to read the plot

• It indicates how to multiply values

• It provides historical data context

According to the key, what does a stem of 3 and a leaf of 7 represent?

• 73

• 37

• 3.7

• 307

How are ages grouped in the stem and leaf plot example provided?

• By 20s, from 20s to 80s

• By 10s, from 20s to 50s

• By 5s, from 20s to 50s

• Randomly without specific groups

What age does a stem of 2 and leaves of 0, 3, 7 represent?

• 20, 23, 27

• 203, 207

• 2.3, 2.7

• 23, 27

If the stem is 4 and the leaves are 1, 4, 6, 7, 7, 9, what are the ages in the 40s?

• 14, 44, 64, 74, 74, 94

• 14, 46, 47, 47, 49

• 41, 44, 46, 47, 47, 49

• 41, 46, 47, 47, 49

In the provided example, what does the stem of 5 and any leaf represent?

• A decimal value in the 0.5s

• A percentage value

• An age in the 5s

• An age in the 50s

What does the combination of a stem of 3 and a leaf of 7 specifically equal?

• 73

• 37

• 3.7

• 307