Ask
Remember Me?
Browse
All Topics
Ask
Answer
Find questions to answer
Find today's questions
Find unanswered questions
Search
Search Topics
Show Questions
Show Posts
Advanced Search
Join/Login
Login
Not a member?
Join our community
All Topics
▸
Topic
▸
Education
▸
Homework Help
▸
Math & Sciences
»
Help me please.
nyc123rr
Posts: 4, Reputation: 1
New Member
#
1
Aug 1, 2012, 01:20 PM
Help me please.
for a group of four men , the probability distribution for the number x who live through the next year is as given in the accompanying table. Find out the mean and the standard deviation
x | p(x)
0 | 0.05
1 | 0.15
2 | 0.45
3 | 0.25
4 | 0.10
Reply
nyc123rr
View Public Profile
Send a private message to nyc123rr
Find latest posts by nyc123rr
ebaines
Posts: 12,131, Reputation: 1307
Expert
#
2
Aug 1, 2012, 02:29 PM
Mean is found by applying
The standard deviation is found from:
Take a shot at this and post back what you get.
Reply
ebaines
View Public Profile
Send a private message to ebaines
Find latest posts by ebaines
Not your question?
Ask your question
View similar questions
Question Tools
Show Printable Version
Email this Page
Search this Question
Advanced Search
Question Tools
Search this Question
Show Printable Version
Email this Page
Search this Question
:
Advanced Search
Add your answer here.
View more questions
Search
EN
NL
Ask Me Help Desk
Privacy Policy
Experts
Help
Mobile Site