ch 4 set 1 - Chapter 4 - Practice Problems 1

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Chapter 4 - Practice Problems 1 SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1) Compare the relative frequency formula for finding probabilities to the classical formula for finding probabilities. How are the two formulas similar and how are they different? What special requirements does the classical approach have? 1) 2) Sometimes probabilities derived by the relative frequency method differ from the probabilities expected from classical probability methods. How does the law of large numbers apply in this situation? 2) 3) On an exam on probability concepts, Sue had an answer of 13 8 for one problem. Explain how she knew that this result was incorrect. 3) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Express the indicated degree of likelihood as a probability value. 4) ʺ There is a 40% chance of rain tomorrow. ʺ A) 40 B) 0.60 C) 0.40 D) 4 4) 5) ʺ You have one chance in ten of winning the race. ʺ A) 0.10 B) 0.5 C) 0.90 D) 1 5) Answer the question. 6) On a multiple choice test with four possible answers for each question, what is the probability of answering a question correctly if you make a random guess? A) 1 B) 1 4 C) 3 4 D) 1 2 6) 1
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Find the indicated probability. 7) A sample space consists of 176 separate events that are equally likely. What is the probability of each? A) 176
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ch 4 set 1 - Chapter 4 - Practice Problems 1

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