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Explain step by step but don't use excel 29) A surfer visited his favorite beach 50 times and recorded the wave height each time in

Explain step by step but don't use excel

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29) A surfer visited his favorite beach 50 times and recorded the wave height each time in the following table. Heights of waves in feet Frequency 0 to 2 20 3 to 5 15 6 to 8 10 9 to 1I 5 Total 50 a. Calculate the average wave height. b. Calculate the variance and standard deviation wave height for this sample

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