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Question: 1. An electronics store expects to have ten returns per day on average. The manager wants to know the probability of the store getting fewer than eight returns on any given day. State the probability question mathematically.
2. An emergency room at a particular hospital gets an average of five patients per hour. A doctor wants to know the probability that the ER gets more than five patients per hour. Give the reason why this would be a Poisson distribution.
scores on a mathematics examination appear to follow a normal distribution with mean of 65 and standard deviation of
we draw a ball from a bag that contains four red balls and eleven white balls. we replace the ball and draw another
A bank loan officer knows that 12% of the bank's mortgage holders lose their jobs and default on the loan in the course of 5 years. - Given that one of her mortgage holders just lost his job, what is the probability that he will now default on the l..
How are the variance and standard deviation related?- If what must be true about the scores in the distribution? Verify your answer using an example.
How large a sample should be selected in order to estimate the population proportion to within a margin of error of 0.02 with 97% confidence. The sample proportion from the preliminary sample was 0.18.
A student has determined it takes an average of 16 minutes to drive from home, park the car, and get to class with a deviation of 4 so if it took the student 25 minutes what will the standard deviation be?
Explain the significance of applying statistical tools to measure risk. Can investor or financial managers confidently forecast performance without application.
Using the information in question 1 and assuming a 50 percent chance of either scenario occurring, determine the expected value of the effective financing rate.
a random sample of size 100 is taken from an infinite population having the mean mu76 and the standard deviation
in a states pick 3 lottery game you pay 1.42 to select a sequence of three digits from 0 to 9 such as 411. if you
in an effort to improve the vocabulary of 10 students a teacher provides a weekly 1-hour tutoring session for them. a
Births. Randomly selected births records were obtained and results are listed in the table below (based on data from the National Vital statistics Report,
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