Lesson 2-7, Example 3 Check Understanding

1. For the first five days in February, the low temperatures in northern Maine were 7F, 4F, –3F, –6F, and 0F. During the same time period, the low temperatures in northern Michigan were 24F, 15F, –2F, –10F, and –5F. Find the mean and range of the temperatures. Compare the spreads of the temperature data.
   1. Maine: mean = 0.4F; range = 13F. Michigan: mean = 4.4F; range = 34F. On average, Maine was colder. The temperatures for Michigan were more spread out.
   2. Maine: mean = 0.5F; range = 13F. Michigan: mean = 4.4F; range = 34F. On average, Maine was colder. The temperatures for Michigan were more spread out.
   3. Maine: mean = 0.4F; range = 7F. Michigan: mean = 4.4F; range = 24F. On average, Maine was colder. The temperatures for Michigan were more spread out.
   4. Maine: mean = 0.5F; range = 7F. Michigan: mean = 4.4F; range = 24F. On average, Maine was colder. The temperatures for Michigan were more spread out.

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