Arithmetic Mean - Fun Bar Graph Game - Math Help Tips

- What most people refer to as an 'average value' or central value is called a 'mean value' in Math.

- The arithmetic mean of the three data values {25,25,40} is 30.
  The mean = 30 is found by adding up 25+25+40 = 90 and dividing 90 by 3.

- To find the average value of a set of numbers it may help to put the numbers in order.
   You can rearrange a data set such as {30,40,20,10} to become {10,20,30,40}.

- The mean of the four data values {10,20,30,40} is 25.
  The answer 25 is found by adding up the four values 10+20+30+40 = 100 and dividing 100 by 4.

- In general, the arithmetic mean of a set of data values is equal to
   the sum of the data values divided by the number of data values.

- If the game doesn't respond to keyboard input,
    click inside the game area to establish the game's focus.
- The game can be played using the mouse by itself or using the keyboard by itself.
- The game speeds up as your score increases. Adjust this by pressing the - or + key repeatedly.

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