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Old Faithful geyser was named in 1870 Over the years more than 137 000 eruptions...

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Old Faithful geyser was named in 1870 Over the years more than 137 000 eruptions of Old Faithful have been observed and recorded The durations have varied between 1 5 and 5 5 minutes Some of those observations are included in the graph below Use the graph to determine which of the following questions are true and which are false If the question is false please answer the question correctly Eruptions of Old Faithful Frequency True True 0 1 1 01 1 5 1 51 2 2 1 2 5 2 51 3 3 1 3 5 3 51 4 4 1 4 5 4 51 5 5 1 5 5 Durations of eruptions minutes False a The graph is based on a sample of approximately 8 eruptions False b Most of the eruptions last approximately 4 25 minutes True False c If the sample is truly representative then for a group of 400 obronations we could owne I

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