In a normal curve, roughly what percentage of all cases fall within plus or minus 2 standard deviations?

The three key sources of the British (unwritten) constitution include Acts of Parliament, common law, and

A. judicial interpretation. B. religious guidelines. C. public referenda. D. customs of the constitution.

Spending patterns of state and local governments differ because of the difference in their primary financial functions

Indicate whether this statement is true or false.