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Range. Arithmetic Mean. Median. Mode. - Fun Game - Math Help Tips - It may help, if you think of the given set of numbers in order from smallest to largest. You can rearrange a data set such as {30,40,20,10} to become {10,20,30,40}. - The range of a set of data values is equal to the largest value minus the smallest value. Example: The range of {30,50,20,10} is found by doing the subtraction 50-10 to get the range = 40. - The mean of a set of data values equals the sum of the data values divided by the number of data values. Example: To find the mean of {25,25,40}, use addition 25+25+40=90 and the division 90/3 = mean = 30. - The median is the middle value of an odd number of values arranged in order (ascending or descending). Example: The median of the five values {10,25,35,50,50} is 35. - For an even number of ordered values, the median is the mean of the two middle values. Example: The median of the four values {5,10,30,60} is (10+30)/2 = 20. - The mode is the number value which occurs most frequently in a set of data values. Example: The mode of {50,25,35,40,25} is 25. - The game can be played using the mouse by itself or using the keyboard by itself. - The score report automatically appears after you have made 12 choices. - The Math score is based on your choices only and does not count the snowflake hits. - The Game score is reduced by the number of snowflake hits. - If the game doesn't respond to keyboard input, click inside the game area to reset the game's focus. - Press the - and + keys repeatedly to adjust the game speed. |
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