A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
X has a normal distribution.
μ=32
Variance=σ2
Given that the probability that X < 33.14 is 0.60406, find the variance to 2 d.p.
anonymous
 4 years ago
X has a normal distribution. μ=32 Variance=σ2 Given that the probability that X < 33.14 is 0.60406, find the variance to 2 d.p.

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0variance = \[\sigma^2\]

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2look up Zvalue of 0.60406 Z = (33.14 32)/s , where s^2 is variance

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sorry, the probability is 0.6406

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0which is 0.36 for z value

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2i meant you need the Zvalue that corresponds to the probability of .6406 ok

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.20.36 = 1.14/s > s = 1.14/0.36 then square it to get variance

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dumb cow how did u get that dp? did they give it to you?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ah Ok. Why did you have to square it?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2oh that...its the default icon that i just saved to paint and messed around with it

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2because variance = standard deviation ^2
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.