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Statistics Help Please!

Statistics
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Let C and D be two  disjoint events such that P(C)=0.50 P(D)=.40 What is P(C and D)?

Apr 6th, 2015

Let C and D be two  disjoint events such that P(C)=0.50 P(D)=.40 What is P(C and D)?

disjoint event are mutually exclusive, P (c and D) = P(c)+P(D) = 0.9

Apr 6th, 2015

Okay thank you! What if C and D were independent? What is P(C or D)?

Apr 6th, 2015

P(c+d) = P(c)+P(d)-P(c and d) = P(c)+P(d) -p(c)*p(d)

Apr 6th, 2015

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