/sci/ - Science & Math

>>	Anonymous Wed Aug 18 06:37:38 2010 No.1616099 [View] File: 61 KB, 750x600, 1233271805863.jpg [View same] [iqdb] [saucenao] [google] the repeating decimal 4:32718718718 as a ratio of integers.?

Anonymous Tue Jul 27 00:38:40 2010 No.1495508 [View]
File: 61 KB, 750x600, 1249264399088.jpg [View same] [iqdb] [saucenao] [google]

/sci/, I have a math problem I'm stuck on.

I need to find the mean age of a city's population based off of census information. The census groups ages together in sections of 5 (10-14, 15-19, 20-24).

The problem asks me to find the average age of each group, then combine them to find the average age of the city. How do I find the average age of each group when it doesn't tell me specific ages?

Advanced search
Text to find
Subject [?]Search by post subject. Leave empty for any.
Username [?]Search for user name. Leave empty for any user name.
Tripcode [?]Search for tripcode. Leave empty for any.
Email [?]Search by email. Leave empty for any.
Filename [?]Search by image filename. Leave empty for any.
From Date [?]Enter what date to start searching from. Format is YYYY-MM-DD
To Date [?]Enter what date to start searching until. Format is YYYY-MM-DD
Image hash
Search in	All Posts OPs Only
Deleted posts	Show all posts Show only deleted posts Only show non-deleted posts
Internal posts	Show all posts Show only internal posts Show only archived posts
Order	New posts first Old posts first
Capcode	All Posts Only by Users Only by Mods Only by Admins Only by Developers
Results	Posts Threads
Action	[ Simple ]

Navigation
View posts	[+24]	[+48]	[+96]

/sci/ - Science & Math

Search: