The table and graphs show the number of exercise DVDs
sold during a 5-month period.
Jan. Feb. Mar. Apr. May
6
8
10
12
14
16
18
Sales (hundreds)
Month
DVDs Sold
6
8
10
12
14
16
18
Sales (hundreds)
Jan. Feb. Mar. Apr. May
Month
DVDs Sold
0
2004
Year
2005
2
4
6
Sales (thousands)
DVDs Sold
Month Jan. Feb. Mar. Apr. May
Sales 7.5 10 12 14 16
(hundreds)
0 0
- Do both graphs show the 4. Which graph would someone use who
same data? wants to convince you that the sales of
exercise DVDs have risen dramatically? - Why do you get a different impression
about the data from the two graphs?
The graph at the right shows sales
of pet-training DVDs.
- How many pet-training DVDs
were sold in 2004? in 2005? - What is misleading about
this graph? - Will had the following test scores: 55, 70, 88, 56, 88, 71, 62.
He told his friend, “My most typical score was 88” (the mode).
Explain why Will’s statement is misleading. - An advertiser said, “Nine out of 10 dentists agree. Glomb works best.”
Explain why this statement might be misleading.
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