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Mathematics 12 Online
OpenStudy (anonymous):

The January daily high temperatures in Rockland, Me., USA is considered the most variable in the world. A random sample of 40 January daily highs were selected from data of the last 30 years. The values ranged from a low of -19.4 °C to a high of -3°C. 1. What class width would be useful? 2. What would bethe initial(lowest) lower class limit?

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