Approximate the mean for the following data set. Round your answer to one decimal place. Class Frequency 0-9 7 10-19 10 20-29 8 30-39 14 40-49 15 Send data to Excel The mean is approximately 26.8 Correct Answer: The mean is approximately 28.7.
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- For the class 0-9, the midpoint is (0 + 9) / 2 = 4.5 - For the class 10-19, the midpoint is (10 + 19) / 2 = 14.5 - For the class 20-29, the midpoint is (20 + 29) / 2 = 24.5 - For the class 30-39, the midpoint is (30 + 39) / 2 = 34.5 - For the class 40-49, the Show more…
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