Quick Statistics Problem

  • Thread starter taffyleg
  • Start date
  • #1
taffyleg
3
0
For a sample of 100 wheat fields, the mean yield was 10 tons/acre and the standard deviation 2. Approximately how many fields out of the 100 should have yields in the 8 to 12 ton range? Show work.
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
43,021
970
But you haven't (shown your work, that is). What have you done on this? Do you know how to find the standard normal variable? Do you have a table of the normal probability distribution? If not, here's a good one on line:
http://people.hofstra.edu/Faculty/Stefan_Waner/RealWorld/normaltable.html [Broken]
 
Last edited by a moderator:

Suggested for: Quick Statistics Problem

  • Last Post
Replies
1
Views
294
Replies
6
Views
392
Replies
6
Views
401
Replies
9
Views
550
  • Last Post
Replies
4
Views
952
Replies
8
Views
749
  • Last Post
Replies
15
Views
261
Replies
3
Views
1K
  • Last Post
Replies
10
Views
323
  • Last Post
Replies
1
Views
169
Top