Suppose that a family has 4 children. Also, suppose that the probability of having a boy is Find the probability that the family has at least 3 boys. The probability that the family has at least 3 boys is (Type an integer or a simplified fraction.)
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- When a pair of dice is tossed, the results may be any whole number from 2 through 12. In the game of craps one can win by tossing either a 7 or an 11 on the first roll. What is the probability of doing this?On Monday's there are eight classes taught in the business building. The probability that any of those classes starts late is 0.3. What is the probability that at least one these classes will start late on Monday?A production manager knows that 5% of components produced by a particular manufacturing process have some defect. Six of these components, whose characteristics can be assumed to be independent of each other, are examined.a. What is the probability that none of these components has a defect?b. What is the probability that one of these components has a defect?c. What is the probability that at least two of these components have a defect?
- You work at a mechanic shop. 40% of cars that come in have a flat tire. If there are 5 cars in the shop, what is the probability that 3 have a flat tire? Round to three decimal points.Find the probability that there are three H when a fair coin is flipped four times. ___________% (Round the answer to 2 decimal points.)The probability that the next President will be a Democrat is 0.5, and the probability that the next President will be a woman is 0.3. The probability the next President will be a woman and a Democrat is 0.1. What is the probability the next President will be a Democrat or a woman?
- A restaurant manager classifies customers as regular, occasional, or new, and finds that of all customers 50%, 40%, and 10%, respectively, fall into these categories. The manager found that wine was ordered by 70% of the regular customers, by 50% of the occasional customers, and by 30% of the new customers.a. What is the probability that a randomly chosen customer orders wine?b. If wine is ordered, what is the probability that the person ordering is a regular customer?c. If wine is ordered, what is the probability that the person ordering is an occasional customer?Early in August an undergraduate college discovers that it can accommodate a few extra students. Enrolling those additional students would provide a substantial increase in revenue without increasing the operating costs of the college; that is, no new classes would have to be added. From past experience the college knows that the frequency of enrollment given admission for all students is 40%.a. What is the probability that at most 6 students will enroll if the college offers admission to 10 more students?b. What is the probability that more than 12 will actually enroll if admission is offered to 20 students?c. If the frequency of enrollment given admission for all students was 70%, what is the probability that at least 12 out of 15 students will actually enroll?1 A car dealer has established that 40% of his potential customers prefer single cab cars while 60% prefer double cab cars. From a recent survey among his existing clients, he obtained additional information which indicates that 15% of clients who bought single cab cars prefer air conditioning while 65% of clients who bought double cars prefer air conditioning.Required:a) What is the probability that a client who bought a single cab does not prefer air conditioning? (5)b) What is the probability that a client prefers a double cab with air conditioning?
- Avicenna is a major insurer that offers five-year life insurance policies to 65 year-olds. If the holder of one of these policies dies before the age of 70 years, the company must pay $213,000 the beneficiary of the policy. Avicena executives are considering the possibility of offering these policies to $9,380 each one. Suppose there is a 4% probability that the insured will die before the 70 age of years and a 96% probability that she will live to 70 age.If Avicena executives know they will sell many of these policies, should they expect to make or lose money by offering them? How much would they win or lose?To respond, take into account the price of the policy and the expected value of the amount paid to the beneficiary.Suppose that there are two types of workers: high and low. Employers cannot distinguish between different types during an interview. Employers value high type at $200,000 and low type at $100,000. Employers are in a competitive market (i.e. zero profit applies). High type workers have a reservation wage of 140,000 and low type workers have a reservation wage of 80,000. Suppose that 50% of all workers are high type. The productivities, reservation wages, and the probabilities are common knowledge). What wage would the employers offer? Please explain the solution!Find the probability of rolling a standard 6-sided die 23 times and getting 10 or more twos. Select an answer Enter a decimal rounded to four places as needed.