Analyzing Data and Homework Time

Mr. Kashi introduces a lesson on using data to persuade, focusing on how graphs and data can be misleading. He provides examples of misleading graphs using homework time, bowling scores, and profit intervals. The lesson also covers misleading data measures using pet data. Students are assigned homework and reminded of the importance of fair data representation.

What is the main purpose of today's lesson?

• To practice solving math problems

• To understand how data can be used to persuade

• To study the history of data analysis

• To learn about different types of graphs

How can companies use data to influence opinions?

• By hiding data from the public

• By using data to support their claims

• By ignoring data altogether

• By presenting data in a clear and honest way

In the homework time graph, why is the seventh-grade bar misleading?

• It uses a different color

• It is much larger than it should be

• It is missing data points

• It is not labeled correctly

What is the actual time difference between fourth and seventh graders' homework time?

• Fourth graders spend 10 minutes more

• Seventh graders spend 10 minutes more

• Seventh graders spend 22 minutes more

• Fourth graders spend 22 minutes more

How can graphs be made to look more fair?

• By using 3D effects

• By adding more data points

• By starting the scale at zero

• By using bright colors

What is a misleading scale in a graph?

• A scale that uses different units

• A scale that is too small

• A scale that does not start at zero

• A scale that uses too many numbers

In the bowling scores example, why is Emily's score misleading?

• Her score is missing data

• Her score is too low

• Her score is exaggerated compared to others

• Her score is not shown

What is a misleading interval in a graph?

• Intervals that are too close together

• Intervals that are not evenly spaced

• Intervals that are too wide

• Intervals that use different units

In the profit growth example, what is misleading about the intervals?

• They are not labeled

• They are too short

• They vary in length, making growth appear steady

• They are all the same length

Which data measure would best support a student's argument for having four pets?

• Mean

• Median

• Range

• Mode