Casio STAT 2 Manual de usuario Pagina 40

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Copyright © Casio, Inc. Activity 7 Statistics and the Casio fx-9750G Plus 35
Introduction
Find a partner to do this activity with. Go to the parking lot of your school or
community and record the colors and the numbers of cars of each color there are.
Follow your teacher’s instructions for the data collection. Create a table with color
categories in the first column and the number of cars in the second column. Use
the data to answer the following questions.
Problems and Questions
1. What is the most popular car color in your school or community (a sample
of the whole population)?
______________________________________________________________________________
What percent of the total number of cars was this color?
______________________________________________________________________________
2. Create a histogram for the data you collected and draw it in the box below.
How did you go about categorizing the colors in the histogram? Why did you do it
this way?
______________________________________________________________________________
______________________________________________________________________________
3. Based on your information, what colors do you think the next 50 cars will be?
______________________________________________________________________________
______________________________________________________________________________
4. Based on JD Power and Associates data for the year 2004 fourth-quarter sales, 24.1%
of the cars bought were silver. Do your results match this result? Make a conjecture
as to why your data did or did not match the data from JD Power and Associates.
______________________________________________________________________________
______________________________________________________________________________
Name _____________________________________________ Class ________ Date ________________
Activity 7 What Color is Your Car?
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