ec-37 - 1 February 12, 2009 It is E370 Time! Announcements...

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1 February 12, 2009 It is E370 Time!!! Announcements WarmUps Questions Today’s Goals: You should be able to create and interpret a contingency table. identify or calculate three kinds of probabilities using a contingency table. check a contingency table for independence of variables. calculate expected values of random variables. Next Time~~Combining Random Variables Announcements Exam Coverage and location information is posted. Exam coverage was amended this morning. ANY questions about posted grades or scores should be sent to your GRADER. To locate your grader you may write to your lab coach and ask for his or her email. go to “Teaching Team Email and Office Hours” on the web site, find your lab coach, then find your grader in the same row of the table. There is a live link for email there. Passenger Class Survived? Crew First Second Third Total No 212 122 167 528 1029 Yes 673 203 118 178 1172 Total 885 325 285 706 2201 Passenger Class Survived? Crew First Second Third Total No 212/2201 = 0.096 0.055 0.076 0.240 0.468 Yes 0.306 0.092 0.054 0.081 0.532 Total 0.402 0.148 0.129 0.321 1.00 Probabilities Joint Marginal
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ec-37 - 1 February 12, 2009 It is E370 Time! Announcements...

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