4 and 1/2
Add the 3 numbers together and divide that answer by 3. Example: The average of 2, 4, and 9. Average = (2+4+9)/3 = 15/3 =5.
4 and one-seventh
5 + 4*(3-2) = 9(5 - 4)*3^2 = 9 - 5 + 4 * 3 + 2 = 9
When there is an even number of data items the median is the mean average of the middle two. → median of {2, 3, 4, 5, 7, 9} = (4 + 5)/2 = 9/2 = 4.5
The average is 4.
4/9 and 2/3 = 4/9 and 6/9 You decide
2/3 * 4/4/9 = 2/3 * 1/9 = 2/27
5. 3+6+9+2 = 20 20 / 4 = 5. To calculate the average of a series of numbers you have to add them together and divide them by the amount of numbers given.
3 fractions equivalent to 4 1/2 = 9/2, 18/4, 27/6 4 1/2 = 9/2 9/2 * 2/2 = 18/4 9/2 * 3/3 = 27/6
1, -1, 2, -2, 4, -4 1, -1, 3, -3, 9, -9
2
8 x (9 - 3) 4^2 (9 - 3) - 4^2 12-4^2 4 x 8 =32