Basic probability for quantum mechanics

  • Thread starter athrun200
  • Start date
  • #1
277
0

Homework Statement


See photo 1


Homework Equations


All formula for probability.


The Attempt at a Solution


See photo 2

It seems traditional formula (involve summation) can't be used.
So how to obtain answer for b.) and c.)?

Also, I am not sure for part a.
 

Attachments

  • 1.jpg
    1.jpg
    21.8 KB · Views: 347
  • 2.jpg
    2.jpg
    10 KB · Views: 335
Last edited:

Answers and Replies

  • #2
George Jones
Staff Emeritus
Science Advisor
Gold Member
7,476
1,194
Is a sum always used to calculate expectation values?
 
  • #3
277
0
Is a sum always used to calculate expectation values?

I think that is average value.
To get expectation values, we need to have wave function.
However, it seems there is no relation between the needle and wave function
 
  • #4
George Jones
Staff Emeritus
Science Advisor
Gold Member
7,476
1,194
Let me try again.

Is a sum always used when calculating average values.
 

Related Threads on Basic probability for quantum mechanics

  • Last Post
Replies
6
Views
3K
Replies
1
Views
1K
Replies
4
Views
1K
Replies
2
Views
2K
Replies
2
Views
2K
Replies
2
Views
2K
Replies
2
Views
1K
Replies
7
Views
5K
Replies
1
Views
2K
Replies
2
Views
1K
Top