kimfreakingpsycho kimfreakingpsycho

10-03-2024
Mathematics

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Battery Lives Twelve batteries were tested to see how many hours they would last. The frequency distribution is shown here. Hours Frequency 1–3 1 4–6 4 7–9 5 10–12 1 13–15 1 Find each of these. a. Mean c. Variance b. Modal class d. Standard deviation

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