Difference between revisions of "Exams/Quizzes" - Rhea

Latest revision as of 10:55, 6 August 2009

Quiz Solutions

Quiz 1 Solution. Mean = 13.00 (out of 20), Standard Deviation = 4.62.

Quiz 2 Solution. Mean = 10.06 (out of 20), Standard Deviation = 5.14.

Quiz 3 Solution. Mean = 11.23 (out of 20), Standard Deviation = 3.96.

Quiz 4 Solution. Mean = 18.24 (out of 20), Standard Deviation = 2.28.

Quiz 5 Solution. Mean = 11.36 (out of 20), Standard Deviation = 6.28.

Quiz 6 Solution. Mean = 11.31 (out of 20), Standard Deviation = 4.24.

Final

Final Solution If you would like to pick up your graded Final, you may drop by Landis' office after August 9 (or send an email if he is out).

Final Results: Mean = 77.95 (out of 120), Standard Deviation = 17.52.

Coverage: The exam will cover all material covered since the Midterm (including CT Fourier Transform). A list of topics include

• CT Fourier Transform
• CTFT properties and use of the tables (included on the exam)
• DT Fourier Transform
• DTFT properties and use of the tables (included on the exam)
• Differential/difference equations for DT/CT LTI systems computed via Fourier transform
• Nyquist Sampling Theorem/Sampling/Aliasing
• DT implementation of CT systems/filters
• AM modulation/demodulation; Single-sideband AM
• Laplace transform and ROC's
• Z transform and ROC's

Preparation: Reviewing the previous quizzes and homework are good ways to prepare. What I've assigned and quizzed on in the past suggests what I will emphasize on the exam. Also the practice exams below, given in past semesters by other instructors, will be good practice, though may not necessarily reflect our exam.

• Practice Final 1 (no solutions)
• Practice Final 2 (with solutions here)
• Practice Final 3 (with solutions here)

Final Cheat Sheet

• A page dedicated to a collaborative cheat sheet.

Midterm

Midterm Solution

Midterm Results: Mean = 64.61 (out of 100), Standard Deviation = 15.31.

Policy: No calculators are allowed on the exam, but you will be allowed one 8.5"x11" sheet (front and back) of hand-written notes.

Coverage: The exam will cover all material through lecture on Wednesday, July 8. Thursday and Friday's lecture will review exam material. The topics include

• Signal properties (even/odd, periodicity, power, energy, etc.)
• Independent variable operations (time shift/scaling/reversal, etc.)
• System properties (Memoryless, causality, time-invariance, linearity, stability, invertibility)
• Finding System properties of LTI systems from properties of the impulse response
• DT and CT LTI system input/output relationship by convolution
• Differential/difference equations to describe LTI systems
• Fourier series of DT and CT periodic signals and Fourier series properties
• Fourier series of output of an LTI system
• Continuous Time Fourier transform (CTFT) and CTFT properties

Preparation: Reviewing the previous quizzes and homework are good ways to prepare. What I've assigned and quizzed on in the past suggests what I will emphasize on the exam. Also the practice exams below, given in past semesters by other instructors, will be good practice, though may not necessarily reflect our exam.

• Practice Midterm 1 (no solutions)
• Practice Midterm 2 (with solutions)
• Practice Midterm 3 (with solutions here)

Midterm Cheat Sheet

• A page dedicated to a collaborative cheat sheet.

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