For a set of measurements, the mean valueis the sum of all the measurement values divided by the number of measurements in the set.
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Two numbers are needed to find a mean.
First,find the mean of the set. Then,find the differences between every item and the mean Square them Find the mean of the squared differences The square root of that is the standard deviation
Three steps:1. Find the mean of all values2. Find the distance of each value from that mean (subtract the mean from each value, ignore minus signs)3. Then find the mean of those distances
You can not find the mean of TA, TA, 1512, and 2512. To find the mean you have to have numbers. You can find the mean of 1512 and 2512 by adding the numbers together and dividing by two. The answer is 2012.
Calculate; find; solve.