Public_Health_142A_-_Selvin_-_Fall_2003_-_MT_1

Public_Health_142A_-_Selvin_-_Fall_2003_-_MT_1 - j!...

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Unformatted text preview: j! .UNIVERSITY OF CALIFORNIA, BERKE ~;. Fall, October 13, 2003 t, ~p up- :'. /' V II I FI 17 " 7() ""-" " l-- H" C/'-" v ""'-" --~~~~---~-- All answers are 3 points. -co: ~'I'ii "}c"CC""'...,;;73,:~*r,WW!r/};~";;I;; ~ tI ~ 1'f~O 1'17'10 '" ,"'. " I P b b . l . t ( rJ ~ v.. ..'" " ...\, . .ro a I I Y: Y' , ~OO "UOC> ~ During the 1970's a study of the risk factors and coronary heart disease (CHD) was con- ducted. There were 270 reported cases of coronary disease (real data, more or less) where 100 occurred to individuals with systolic blood pressures over 140 mm/Hg. Furthermore, there were 3000 study participants and 900 had high blood pressure (> 140). Find the following probabilities: P(CHD) = .(!JCf ? P(blood pressure> 140) = .S ? P(blood pressure> 140 I CHD) = .s 7? P(CHD I blood pressure> 140 ) = ~LL_? P(no CHD and blood pressure> 140) = , -z6 7 ? P(CHD and blood pressure> 140) = -~~~? Are the ~vents CHD and high blood pressure independent? (yes o@-- circle one) Show evIdence for your answer. P{CflJ)~,",d bp)"ofO) 4 'P{CI-I-r;) P(bp)IYO) ,o~s :i- (,Oq)t;:,'}) -+ ,Ol~~loz.7 Are the events CHD and high blood pressure mutually exclusive? (yes o~-- circle one) Show evidence for your answer. o/" C 1-1- .p ---J l; P 7 11/0 \ -J. ?\ I-..L ',{ I rL'...
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Public_Health_142A_-_Selvin_-_Fall_2003_-_MT_1 - j!...

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