-190,75,-65,100,72,-54,-62,-87,92,81,-73,63 i am suppose to find the mean is this right.....84.5 but if it what would the sign be?
2006-10-16 16:42:42 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
add them all up and divide by 8, or the number of terms. the sign is positive
2006-10-16 16:46:02 · answer #1 · answered by s_mollenk 1 · 0⤊ 0⤋
sorry,84.5 is not the coorect answer.To get the correct answer let us solve it in systematic way The total of8 numbers= - 190+75- 65+100+72- 54-62-87 = - 211 Therefore, the mean is - 211/8 = - 26.375
2006-10-17 00:31:48 · answer #2 · answered by alpha 7 · 0⤊ 0⤋
To find the mean of 8 numbers, add them all up and divide by 8.
84.5 is not correct. Adding a negative number works the same as subtracting a positive number. Adding these numbers all up will give you a negative number, so after you divide by 8 to get the mean, the answer will be negative.
2006-10-16 23:50:22 · answer #3 · answered by Kevin L 2 · 0⤊ 0⤋
The mean is not 84.5. The mean is negative. Add all the numbers together: the sum is negative, therefore the mean is negative.
2006-10-16 23:54:16 · answer #4 · answered by gp4rts 7 · 0⤊ 0⤋
Once I added those numbers together, I got -211.
To find the mean, I took -211 (the sum of the eight numbers) and divided by 8 (the number of numbers you were adding together).
-211 / 8 = -26.375
2006-10-16 23:48:00 · answer #5 · answered by Gators08 2 · 0⤊ 0⤋
If your sum was negative, the mean would be negative also.
If your sum was positive, the mean is positive.
You'll always divide by a positive number, so the sign would depend on the sum of the numbers.
2006-10-16 23:47:21 · answer #6 · answered by PatsyBee 4 · 0⤊ 0⤋
add all the numbers together with their signs and then divide by how many numbers you added together (8). The answer is -26.375.
2006-10-16 23:48:40 · answer #7 · answered by Anonymous · 0⤊ 0⤋