Finding average in a single range with multiple criteria

[bwatkiss]

Hello, i’m trying to do a formula that gives me the average of scores from one column based on the group the individuals are in in another column. For example, let’s say I have 20 groups with four or five people in each of those groups designated in their column by their group number. In another column each of those individuals has a score, how would I then add up each of those scores for those in the same group and get the average for that group put into another column using a formula?

thank you!

 

[bwatkiss]

Here is a snippet of my sheet, each of these rows contains an individual, I need a formula to input into the cells of the Mean column that calculates the average from the Pts column based on the group from the Grp column. For example, the result for the first 4 rows of the Mean column would be the result of the average from the Pts column 23+34+39+45=141 divided by 4 = 35.3

However the groups won't always be in sequential order like my snippet, the group column could read like this.
1
3
5
1
6

Grp	Mean	Pts
1		23
1		34
1		39
1		45
2		28
2		30
2		40
2		44
3		45
3		39
3		35
3		29
4		26
4		35
4		38
4		41
5		29
5		30
5		32
5		36
6		15
6		27
6		32
6		45

 

[Fluff]

How about

+Fluff 1.xlsm
	J	K	L
15	Grp	Mean	Pts
16	6	29.75	15
17	1	35.25	23
18	4	35	26
19	6	29.75	27
20	2	35.5	28
21	3	37	29
22	5	31.75	29
23	2	35.5	30
24	5	31.75	30
25	5	31.75	32
26	6	29.75	32
27	1	35.25	34
28	3	37	35
29	4	35	35
30	5	31.75	36
31	4	35	38
32	1	35.25	39
33	3	37	39
34	2	35.5	40
35	4	35	41
36	2	35.5	44
37	1	35.25	45
38	3	37	45
39	6	29.75	45
40
Master

Cell Formulas
Range	Formula
K16:K39	K16	=AVERAGEIF($J$16:$J$97,J16, $L$16:$L$97)

 

[bwatkiss]

Works perfect, thanks so much!!

 

[Fluff]

You're welcome & thanks for the feedback.