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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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