Answer:
They are the answers to square roots of 36 and 9 respectively
Step-by-step explanation:
-6 and 6 are the answers to
-3 and 3 are the answers to
suzy ran 4 laps on monday and 10 laps on friday. what is the percent of change from monday to friday? HELPP WILL MARK BRAINLIAST
1 answer:
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To compute the mean, you simply have to sum all the elments in the data set and the divide the sum by the number of elements:
To compute the variance, we first need to compute the distance of each element from the mean. To do so, we build a "parallel" dataset, given by the difference of every value and the mean:
Now we need those difference squared:
The variance is the mean of this new vector, so
Finally, the standard deviation is simply the square root of the variance, so you have