I have 34 and 20 what is the mean and how do i find it? and how do i find standard dievation?
2. other numbers are 40 and 20, i need to find mean and standard dievation.
2007-09-11 11:37:05 · 4 answers · asked by inside and out 1 in Science & Mathematics ➔ Mathematics
The mean is the average of 2 numbers.
34+20 is 54, divided by 2 is 27. Standard deviation is how far each number is away from the mean, so 34-27 is 7.
40+20 is 60, 60/2 is 30. 40-30 is 10.
2007-09-11 11:41:16 · answer #1 · answered by peteryoung144 6 · 1⤊ 0⤋
you just add the numbers and devide by how many numbers there are
1) 34+20=54/2=27
2) 40+20=60/2=30
2007-09-11 19:56:17 · answer #2 · answered by ali 2 · 0⤊ 0⤋
the mean is 27 and 7
30
2007-09-15 17:53:10 · answer #3 · answered by sher 1 · 0⤊ 0⤋
i believe that dudes right
2007-09-11 18:44:41 · answer #4 · answered by Cincyfan0591 4 · 0⤊ 0⤋