Chemistry, 24.06.2019 03:30 muravyevaarina
The ph of a solution is measured eight times by one operator using the same instrument. she obtains the following data: 7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.16, and 7.20. (a) calculate the sample mean. round your answer to 3 decimal places.
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