PRE-TEST: Dot Plots, Histograms, and Stem-and-Leaf Plots

A group of cat owners was asked about the number of cats each owns. The results are shown in the frequency table.

Which dot plot correctly shows the data?

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A group of hamster owners was asked about the number of hamsters each owns. The results are shown in the frequency table.

Which dot plot correctly shows the data?

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A pizza restaurant recorded the numbers of toppings their customers requested on large pizzas. The results are shown in the frequency table.

Which dot plot correctly shows the data?

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Students in a class were asked how many e-mails they sent that day. The results are:

0, 1, 1, 2, 4, 4, 5, 7, 7, 8, 11, 12, 16, 16, 19

Which histogram correctly shows the data set?

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Students in a class were asked how many e-mails they sent that day. The results are:

0, 1, 1, 2, 3, 3, 4, 4, 6, 7, 8, 10, 11, 14, 15

Which histogram correctly shows the data set?

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People leaving the library were asked how many books they checked out that day. The results are:

1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 8, 10, 10

Which histogram correctly shows the data set?

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Mariner Middle School has 550 students. The height of each student is measured and recorded at the beginning of the year. A school health class organizes the raw data into 6 equal height intervals.

Would a dot plot or a histogram be a more appropriate way to display the data for this situation?

• A histogram, because the class wants to show all of the individual data values.

• A dot plot, because the class organizes the data into different intervals or ranges.

• A histogram, because the class organizes the data into different intervals or ranges.

• A dot plot, because the class wants to show all of the individual data values.

Ms. Spencer has 15 students in her class. She asks each student how many siblings they have. She wants to see which number of siblings is the most common in the class.

Would a dot plot or a histogram be a more appropriate way to display the data for this situation?

• A dot plot, because Ms. Spencer wants to show all of the individual data values.

• A histogram, because Ms. Spencer wants to show how the data fall into different intervals or ranges.

• A histogram, because Ms. Spencer wants to show all of the individual data values.

• A dot plot, because Ms. Spencer wants to show how the data fall into different intervals or ranges.

Mr. Kawamura has 15 students in his class. He asks each student how many family pets they have. He wants to see which number of pets is the most common in the class.

Would a dot plot or a histogram be a more appropriate way to display the data for this situation?

• A dot plot, because Mr. Kawamura wants to show all of the individual data values.

• A histogram, because Mr. Kawamura wants to show how the data fall into different intervals or ranges.

• A histogram, because Mr. Kawamura wants to show all of the individual data values.

• A dot plot, because Mr. Kawamura wants to show how the data fall into different intervals or ranges.

he data in this stem-and-leaf plot range from _____ to _____.

• 25; 53

• 25; 56

• 28.53

• 28, 56