Unit 1, Lesson 12
Variability
Extra Support Materials for Algebra 1
12.1
Warm-up
Estimate: Average Book Length
- Record an estimate that is:
too low about right too high - Explain your reasoning.
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| too low | about right | too high |
|---|---|---|
Choose the best option based on the given data. Use a measure of center and measure of variability to justify your answers.
Participants’ ages at Camp A
Participants’ ages at Camp B
mean: 11.93 years
mean absolute deviation: 1.65 years
Servers’ tip amounts at Restaurant A
mean: $15
mean absolute deviation: $1.5
Servers’ tip amounts at Restaurant B
Mai and Tyler both visit the same preschool classroom and measure the heights of people in the room in inches. The summary of their results is shown in the box plot and statistics.
Mai's results
mean: 35.2 inches,
mean absolute deviation: 3.24 inches
Tyler's results
mean: 39.3 inches,
mean absolute deviation: 7.19 inches
What do you notice? What do you wonder?