Question

1. The mean of a set of values is meant to represent...
       a. the spread in a histogram of values
       b. the accuracy associated with the values
       c. the average of the values
       d. the error associated with the average
       e. none of the above

2. All of the following are major factors in determining the earth's yearly seasons except
   a.   the 23.5 degree tilt of its rotational axis with respect to its orbit about the sun.
   b.    the angle of the sun's rays on the surface during the course of the year.
   c.   the changing number of hours of daylight and darkness because of its tilt.
   d.    the gravitational attraction of the moon.
   e.    none of these.

Answer 1