The set of all even numbers that range between -3 and 12

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets

Plz hurry evaluate the expression a+b where a=8 and b=19