資訊推薦

• 276. An insurance company has two divisions, auto and property. Total annual claims, X, in the auto
• 277. In a study of driver safety, drivers were categorized according to three risk factors. Exactly
• 278. A farmer purchases a five-year insurance policy that covers crop destruction due to hail. Over
• 279. The lifetime of a certain electronic device has an exponential distribution with mean 0.50. Cal
• 280. The probability that an agent sells an insurance policy to a potential customer during a first
• 281. A health insurer sells policies to residents of territory A and territory B. Past claims experi
• 283. In any twelve-month period, the probability that a home is damaged by fire is 20% and the proba
• 284. An employer provides disability benefits to its employees for work-related and other injuries.
• 285. Appraisals of the value of a necklace are uniformly distributed on the interval [θ−3,θ +1], whe
• 195. A machine has two parts labelled A and B. The probability that part A works for one year is 0.8
• 196. Six claims are to be randomly selected from a group of thirteen different claims, which include
• 197. A drawer contains four pairs of socks, with each pair a different color. One sock at a time is
• 198. At a mortgage company, 60% of calls are answered by an attendant. The remaining 40% of callers
• 199. An insurance company studies back injury claims from a manufacturing company. The insurance com
• 200. The number of traffic accidents occurring on any given day in Coralville is Poisson distributed
• 120. Two fair dice, one red and one blue, are rolled. Let A be the event that the number rolled on t
• 121. An urn contains four fair dice. Two have faces numbered 1, 2, 3, 4, 5, and 6； one has faces num
• 122. An insurance agent meets twelve potential customers independently, each of whom is equally like
• 123. A policyholder has probability 0.7 of having no claims, 0.2 of having exactly one claim, and 0.
• 124. In a given region, the number of tornadoes in a one-week period is modeled by a Poisson distrib
• 125. An electronic system contains three cooling components that operate independently. The probabil
• 126. An insurance company’s annual profit is normally distributed with mean 100 and variance 400. Le
• 127. In a group of health insurance policyholders, 20% have high blood pressure and 30% have high ch
• 128. In a group of 25 factory workers, 20 are low-risk and five are high-risk. Two of the 25 factory
• 3. Two speakers both produce sound wave of power = 400πWatt, frequency = 170 Hz, and sound velocity