Three fair coins are tossed and either heads or tails is observed for each coin. Events A and B are defined as follows.
A: {Three heads are observed}.
B: {Exactly two heads are observed}. $$\text { Is } P ( A \cup B ) \text { equal to the sum of } P ( A ) \text { and } P ( B ) \text { ? Explain. }$$

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The Answer of Three fair coins are tossed and either heads or tails is observed for each coin. Events A and B are defined as follows.
A: {Three heads are observed}.
B: {Exactly two heads are observed}. $$\text { Is } P ( A \cup B ) \text { equal to the sum of } P ( A ) \text { and } P ( B ) \text { ? Explain. }$$

Three Fair Coins Are Tossed and Either Heads or Tails Is P(A∪B) equal to the sum of P(A) and P(B) ? Explain. \text { Is } P ( A \cup B ) \text { equal to the sum of } P ( A ) \text { and } P ( B ) \text { ? Explain. } Is P(A∪B) equal to the sum of P(A) and P(B) ? Explain.

Three Fair Coins Are Tossed and Either Heads or Tails $\text { Is } P ( A \cup B ) \text { equal to the sum of } P ( A ) \text { and } P ( B ) \text { ? Explain. }$