find probability.... round 2 dec

Statistics
Tutor: None Selected Time limit: 1 Day

p(a)=.55 p(b).20 p(a upside down u b)=.11

A. Calculate p(a|b)

B. P(a u b)

C. P ((a u b)c)

The c is like a number with an exponent.... except only the letter c

Feb 11th, 2015

a. p(a/b) = P( a n b)/p(a) = 0.11/0.55 = .2

b. B. P(a u b) = P(a) + p(b) - p(a n b) = .55 +.20 - .11 = .64

c. P(AUB)c=1-P(AUB)= 1 - .64 = 0.36


Please best my answer, I will give you yesterdays answer as well :)

Feb 11th, 2015

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