2 B 1 C 2 D 2 E none of the above S46 turn up is A 1 2 B 1 4 C 3 8 D 2 3 E none

2 b 1 c 2 d 2 e none of the above s46 turn up is a 1

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2 (B) 1 (C) 2 (D) 2 (E) none of the above. S4.6 turn up is (A) 1 2 (B) 1 4 (C) 3 8 (D) 2 3 (E) none of the above. S4.7 Let be a random variable with cumulative distribution function . Which of the following statements are always true: (A) lim 0 (B) 1 (C) 0 1 for every (D) all of the above are true (E) none of the above are true. S4.8 The length (in inches) of a steel rod is a random variable with probability density function given by 9 2 if 9 11 0 otherwise A rod is considered defective if its length is less than 10 inches. If 2 independent steel rods are examined, the probability that exactly one is defective is (A) 1 4
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Self-Test Exercises for Chapter 4 95 (B) 3 8 (C) 1 16 (D) 3 16 (E) none of the above. S4.9 An airplane can hold 100 passengers. Passenger behavior has been exten- sively studied over the years. It is known that the probability is 0 01 that a Assume that a person decides independently whether or not to show up for (A) 0 (B) 0 01 (C) 0 99 101 (D) 1 (E) none of the above. S4.10 Let be a continuous random variable with probability density function if 0 0 otherwise If 1 2 , then must equal (A) 1 (B) 1 2 (C) 1 (D) 2 (E) none of the above. S4.11 Let be a continuous random variable with probability density function 2 if 0 2 0 otherwise Then 1 equals
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96 Self-Test Exercises for Chapter 4 (A) 1 8 (B) 1 4 (C) 1 3 (D) 1 2 (E) none of the above.
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  • Spring '17
  • Probability distribution, Probability theory, probability density function, Cumulative distribution function, Probability mass function

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