Question 799462: Decide whether the events are independent or dependent. Explain your reasoning.
1. Selecting an ace from a deck of cards, replacing it, and then selecting an ace from the deck.
2. The life span of Mark, a 55 year old man, is 10.2 years. The life span of Marisa, a 26 year old woman, is 50.4 years.
3. Studying for an exam and passing the exam.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Decide whether the events are independent or dependent. Explain your reasoning.
1. Selecting an ace from a deck of cards, replacing it, and then selecting an ace from the deck.
Ans: "replacing it" makes the events independent.
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2. The life span of Mark, a 55 year old man, is 10.2 years. The life span of Marisa, a 26 year old woman, is 50.4 years.
Ans: One event does not effect the other; the events are independent.
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3. Studying for an exam and passing the exam.
Ans: passing does depend on studying for the exam.
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Cheers,
Stan H.
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