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• 複選題18. 下列關於地球磁場的敘述，哪些正確？（多選）(A)地球磁場的日變化是以恆星日為週期 (B) 高緯度地區的磁場日變化較低緯度地區大 (C)這 150 年來地球磁場有減弱的趨勢 (D)磁暴是
• 19. 利用聲納探測海底地形的原理與下列何項探測原理最相似？ (A)地用地震車探測淺層地層分佈 (B)利用震波分析地殼至地核的分層結構 (C)利用人造衛星軌道變化分析海底地形 (D)福衛七號衛星探測大
• 39. A study is being conducted in which the health of two independent groups of ten policyholders is
• 40. For Company A there is a 60% chance that no claim is made during the coming year. If one or more
• 41. A company takes out an insurance policy to cover accidents that occur at its manufacturing plant
• 73. The waiting time for the first claim from a good driver and the waiting time for the first claim
• 20. 下圖為三大洋垂直向的水團分布，圖中白色箭頭代表水團的流向。下列關於此圖與水團的敘述，何者有誤？(A)垂直向的水團分布主要是依照海水的溫度、鹽度性質來辨識的 (B)太平洋 的平均海底深度為較其他
• 42. An insurance policy pays 100 per day for up to three days of hospitalization and 50 per day for
• 43. Let X be a continuous random variable with density functionCalculate the expected value of X. (A
• 74. A tour operator has a bus that can accommodate 20 tourists. The operator knows that tourists may
• 75. An insurance policy pays a total medical benefit consisting of two parts for each claim. Let X r
• 76. A car dealership sells 0, 1, or 2 luxury cars on any day. When selling a car, the dealer also tr
• 77. The profit for a new product is given by Z = 3X – Y – 5. X and Y are independent random variable
• 78. A company has two electric generators. The time until failure for each generator follows an expo
• 79. In a small metropolitan area, annual losses due to storm, fire, and theft are assumed to be mutu
• 80. Let X denote the size of a surgical claim and let Y denote the size of the associated hospital c
• 81. Two life insurance policies, each with a death benefit of 10,000 and a one-time premium of 500,
• 82. A diagnostic test for the presence of a disease has two possible outcomes: 1 for disease present
• 83. An actuary determines that the annual number of tornadoes in counties P and Q are jointly distri
• 84. You are given the following information about N, the annual number of claims for a randomly sele
• 44. A device that continuously measures and records seismic activity is placed in a remote region. T
• 85. Under an insurance policy, a maximum of five claims may be filed per year by a policyholder. Let
• 86. The amounts of automobile losses reported to an insurance company are mutually independent, and
• 87. An insurance agent offers his clients auto insurance, homeowners insurance and renters insurance
• 88. The cumulative distribution function for health care costs experienced by a policyholder is mode