determine what the probability was that it was a boy is
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- A box contains white ball and blue balls. When two balls are drawn at random, the probability that both are white is 0.5. How small can the number of balls in the box be?It did not answer the questions since it was asking What is the probability that Bill was accepted at College Y given that he was accepted at College X?A candy company claims that 31% of candies are orange. We randomly sample 100 candies. We wish to know the probability our sample is 29% orange candies or less. Find the probability our sample is 29% orange candies
- The probability that Rockies' Trevor Story will get a hit is 0.277. What is the probability that he does not get a hit next time at bat?Out of a sample of 10,000 men, the probability that a man picked at random weighs over 190 pounds is 0.25. The probability that a man weighs less than 135 pounds is 0.15. What is the probability that a man picked at random weighs either 190 pounds or under 135 pounds?You are the webmaster for your firm's website. From your records, you know that the probability that a visitor will buy something from your firm is 0.26. In one day, the number of visitors is 1050. If the visitors' traffic is more than the expected for the day, what is the probability that at least 10 more than the expected visitors will buy something from the firm?
- The probability that an electronic circuit board contains dirty particles is 0.01. Considering that the plates are independent, what is the probability that 125 plates will be analyzed until we find the first particle?You have relatives coming for dinner this weekend. The probability that your uncle Josiah will show up is 0.69. What is the probability that uncle Josiah doesn't show up? Enter your answer as a decimal, rounded to three decimal places.If you roll a normal 6 sided die what would be the theoretical probability of rolling a 1 or a 2.
- Based on past experience, the store manager estimates that the probability that any one customer will make a purchase is .30. What is the probability that two of the next three customers will make a purchase?Money bills are frequently printed with defects. The probability that a bill's front side has a defect is 2 percent, the probability that a bill's back side has a defect is 4 percent, and the probability that a bill has defects on both sides is 1 percent. What is the probability that a bill will have a defect on the front, given that it has a defect on its back?The professor has taught basic statistics for several years. He knows that 80% of the students will finish the assigned problems. Also that among those who do their homework, 90% will pass the course. Among those who do not do their homework, 60% will pass the course. A student He took statistics last semester with the professor and passed. Which is the probability that you have completed your tasks?