A researcher is interested in conducting a mail survey. He finds out that there is a 40% response rate to such surveys. If a survey is mailed to 5 people, what is the probability that at least one responds?   -Binomial Distribution

very morning, Laura practices shooting basketball free throws.  She doesn’t shoot a fixed amount, instead she keeps shooting free throws until she makes 12.  Suppose Laura is an 82% free throw shooter. Let X be how many free throws Laura will miss tomorrow morning.  Then X has a negative binomial distribution. What is a trial?                         What is a success?                         How many successes are required? r =                            What is the success probability?  p =

The number of content changes to a Web site follows a Poisson distribution with a mean of 0.25 per day. What is the probability of no content changes in five days? 0.026 0.267 0.287 None of the choices

The time required to complete the Uniform Obstacle Course in the Statistics Games is uniformly distributed, ranging from 8 to 17 minutes. One competitor is selected at random. What is the expected time a competitor will take to complete the obstacle course? Enter Answer Here

Airline passengers arrive randomly and independently at the passenger screening facility at a major international airport. The mean arrival rate is 6 passengers per minute.   What is the probability of no arrivals in a 1-minute period? If required, round your answer to six decimal places. What is the probability of 3 or fewer arrivals in a 1-minute period? If required, round your answer to six decimal places. What is the probability of no arrivals in a 12-second period? If required, round your answer to four decimal places.

A study conducted at a college shows that 62% of the school's graduates find a job in their chosen field within a year of graduation. Find the probability that among 7 randomly selected graduates at least 4 find a job in his/her chosen field within a year of graduating. (Binomial Distribution) 74.8% 53.6% 28.4% 46.4% 25.2%

Determine whether the given procedure results in a binomial distribution. If not, give the reason why not. Choosing marbles from a box of 40 marbles (20 purple, 12 red, and 8 green) one at a time with replacement, keeping track of how many marbles are drawn until a red marble is chosen O Not binomial; there is not a fixed number of trials O Not binomial; there are more than two outcomes for each trial O Not binomial; the trials are not independent O Not binomial; for more than one of the reas as given in the above answer choices O This procedure results in a binomial distribution Submit Question X PrtScn DII F3 4 R F4 % 5 T F5 6 F6 & 7 U F7 * 8 F8 Home ( F9 O ) End F10 P

The time to fly between New York City and Chicago is uniformly distributed with a minimum of 94 minutes and a maximum of 100 minutes. What is the probability that a flight is between 95 and 99 minutes?   Multiple Choice   1.00   0.67   0.44   0.56

You are looking for the probability to draw 3 aces in 5 attempts from a deck of cards. There are 52 cards in the deck and 4 of them are aces. Explain why the poisson is not a good choice for describing this data-generating process. Which distribution would you use instead? No calculations necessary.