Separation of Lanthanides/ Lanthanides and Actinides
Week 4 lecture_math_221_nov_2012
1. B. Heard
(These may not be copied, reproduced, or posted
in an online classroom without my permission.
Students may download one copy for personal use.)
2. Week 4 iLab
9 Questions (some requiring multiple answers)
I will show similar problems, but please note
these are not the same values!
Submit in the given Microsoft Word Document to
the Week 4 iLab Dropbox found in the Dropbox
area (tabs at top of your course)
3. Number 1
I will be using 1/5, 2/5 and 4/5 (NOT ¼ , ½ and ¾ )
17. Forthe first one, x ≥ 1, you would add all of the
probabilities from 1 through 10 for 2/5 or calculate
1 – P(0)
18. Forthe second one, x > 1, you would add all of
the probabilities from 2 through 10 for 2/5 or
calculate 1 – (P(0)+P(1))
19. Forthe third one, 4<x ≤ 7, you would add all of
the probabilities from 5 through 7
20. For the last one, x < 4 OR x ≥ 7, you would add all of
the probabilities from 0 through 3 AND all
probabilities from 7 through 10 (OR YOU COULD SAY
1 – THOSE NOT INCLUDED)
21. Number 5
Mean = 10 (2/5) = 4 Std Dev = Sq Root (10)(2/5)(3/5) = 1.549
22. Number 6
Mean = 10 (1/5) = 2 Std Dev = Sq Root (10)(1/5)(4/5) = 1.265
23. Number 7
Mean = 10 (4/5) = 8 Std Dev = Sq Root (10)(4/5)(1/5) = 1.265
24. Number 8
USE DEFINITION OF BINOMIAL DISTRIBUTION…..
25. Number 9
USE YOUR RESULTS FROM THE SURVEY DATA IN NUMBER 2 AND
COMPARE THEM TO THE RESULTS FOR ½ IN NUMBER 5. EXPLAIN
WHY THEY DIFFER (HINT: ONE IS _________ AND THE OTHER IS
______________) ABOUT A PARAGRAPH