Select the synnym of the confine from the multiple choice questions-liberate-set free-set at liberty-give ones liberty-emancipate-manumit-unfeter-unbind-unchain-unshakle-circumscribe?
I've always been taught that multiple sets is a better way to go. It spreads the work out across more time, increasing the aerobic activity, as well as giving you more reps.
Because, if there is an even number of results in the set of data, the mean must be calculated by finding the half-way point between the two central numbers.