I can't believe I have forgotten.....And I recently graduatd with masters...I feel so stupid.
If I need to work out average, from a list of numbers...I add up all the numbers and divide by the number of numbers...Is that correct???
For example: what is the average?
10
30
15
18
27
???
I would add up these numbers and then divide by 5. Is that correct?
2007-12-26 03:29:19 · 21 answers · asked by Anonymous in Education & Reference ➔ Homework Help
That is correct:
10+30+15+18+27 = 100
100 / 5 = 20
The average is 20.
that's it! :)
2007-12-26 03:34:44 · answer #1 · answered by Marley K 7 · 1⤊ 0⤋
10+30+15+18+27 divided by 5 because there are 5 figures =20
2007-12-26 03:33:08 · answer #2 · answered by stumpymosha 5 · 2⤊ 0⤋
you add all of the numbers together and divide by the amount of numbers there for example as shown in ur example
10+30+15+18+27 = 100
the divide by how many numbers there are
=5
so 100 /5 = 20
2007-12-26 03:36:07 · answer #3 · answered by Lucylou 1 · 1⤊ 0⤋
Yes that is right. Add them up and divide by 5 to find an average figure.
2008-01-02 09:04:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋
yes u are right the way u said. There are four different averages that i know of:
mean: add all and divide by th number
median: put all numbers in order and find the middle number
mode: most frequent number
range: biggest take smallest
mean is the most popular
2007-12-30 08:47:08 · answer #5 · answered by Anonymous · 0⤊ 0⤋
yeah add them all up so
10
30
15
18
27
=100
then divide by the number of items you have so 5
100/5=20
2007-12-26 07:42:26 · answer #6 · answered by you're.misunderstanding. 4 · 0⤊ 0⤋
add all the numbers up and divide by the amount of numbers,so yes ,divide by 5 is right in your example.
2007-12-26 03:33:52 · answer #7 · answered by ginger 6 · 1⤊ 0⤋
yes add up and divide by the number!
it would be 20!
2007-12-26 03:32:42 · answer #8 · answered by MiZz RuBy 6 · 2⤊ 0⤋
You add all the numbers and divide it by the number of numbers.
2007-12-26 06:42:50 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Yes, that is how to calculate the mean average. There are two other averages.
The median: lin eup the numbers in order, smallest to largest, and pick the middle one.
The mode: The most common number - so in your case as they are all different there is no mode.
2007-12-30 03:39:47 · answer #10 · answered by Granny 5 · 0⤊ 0⤋