1 If an event A is certain, then p(A) = 1. 2 If p(A) = 0.2, p(B) = 0.3, and p(AnB) = 0.1, then p(AU B) = 0.4 3 If the odds against A are 2:3, the probability of A is 60%.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 35E
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Please help me with these statements.

there are true / false statements.

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1 If an event A is certain, then p(A) = 1.
%3D
2 If p(A) = 0.2, p(B) = 0.3, and p(AnB) = 0.1,
then p(AUB) = 0.4
3 If the odds against A are 2:3, the probability of A is
60%.
4 If A = {set of all prime numbers less than 10} and
B = {set of all numbers divisible by 2}, then the
intersection of A and B contains two elements.
5 An event and its complement are mutually exclusive.
Transcribed Image Text:1 If an event A is certain, then p(A) = 1. %3D 2 If p(A) = 0.2, p(B) = 0.3, and p(AnB) = 0.1, then p(AUB) = 0.4 3 If the odds against A are 2:3, the probability of A is 60%. 4 If A = {set of all prime numbers less than 10} and B = {set of all numbers divisible by 2}, then the intersection of A and B contains two elements. 5 An event and its complement are mutually exclusive.
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