When we add the data value27to the original Set B, the data values in this new data set can be defined as

x₁,x₂,,x₅₀, and27.

There are now fifty-one data values in the set, son= . We can now find the mean for the new data set, rounding the final result to two decimal places. Recall that we previously determined that

x₁+x₂++x₅₀=200.