Stat 50
Section 4.7 Solutions
Spring 2014
2. Let X be time between requests, then X : Exp
1
2
a.
E X
b. X : Exp 2 . If m is the median time between requests, in seconds, then P X m e 2 m 0.5 .
Solving for m, m 0.5 ln 0.5 0.347 seconds.
c. E ( X ) 0.5 se
Department of Mathematics & Statistics
MATHEMATICS 225.3 (01)
FINAL EXAMINATION
Instructor: J. Martin
Time: 3 hours
December 22, 2004
CLOSED BOOK
NO FORMULA SHEETS OR CALCULATORS
[4]
1. (a) Find parametric equations for the line through the point (0, 1, 2
Marks:
[5]
[7]
[101
Memo .. F- coca Mamgdg:
University of Saskatchewan 34,;
Department of Mathematics 85 Statistics
MATHEMATICS 225.3 (01)
Final Examination
J .R. Martin
Time: 3 hours
December 9, 2008
CLOSED BOOK
NO FORMULA SHEETS, CALCULA
Department of Mathematics & Statistics
MATHEMATICS 225.3 (01)
FINAL EXAMINATION
Instructor: J. Martin
Time: 3 hours
December 9, 2005
CLOSED BOOK
NO NOTES, CALCULATORS OR
OTHER ELECTRONIC DEVICES ARE PERMITTED.
marks
[4]
1. Find an equation of the sphere w
Department of Mathematics & Statistics
MATHEMATICS 225.3 (01)
FINAL EXAMINATION
Instructor: J. Martin
Time: 3 hours
December 9, 2005
CLOSED BOOK
NO NOTES, CALCULATORS OR
OTHER ELECTRONIC DEVICES ARE PERMITTED.
marks
[4]
1. Find an equation of the sphere w
Marks:
[5]
[7]
[101
Memo .. F- coca Mamgdg:
University of Saskatchewan 34,;
Department of Mathematics 85 Statistics
MATHEMATICS 225.3 (01)
Final Examination
J .R. Martin
Time: 3 hours
December 9, 2008
CLOSED BOOK
NO FORMULA SHEETS, CALCULA
Chapter 13 /The Costs of Production 113
118.
Foraconstructioncompanythatbuildshouses,whichofthefollowingcostswouldbeafixedcost?
a. the$50,000peryearsalarypaidtoaconstructionforeman
b. the$30,000peryearsalarypaidtothecompanysbookkeeper
c. the$10,000peryear