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Tim gets 15 emails on average per day (i.e. per 24 hours). Emails arrive randomly and independently. a) What is probability that Tim gets exactly 12 emails on a particular day? b) Find the probability that he gets at least 3 emails on a particular day? c) What is the standard deviation of the number of emails that Tim gets in one day? d) In one hour, given that Tim received at least one email, what is the probability that he received less than 3 emails (in that same hour)? e) What is the probability that Tim gets 4 emails between 2:00 pm and 5:00 pm and then 2 emails between 6:00 pm and 8:00 pm in the same day? f) What is the expected number of emails that Tim gets in a week?
Find the relation of question with some of the factors you think important as motivators of choosing the medical profession. Why do you choose these factors?
q1. mr. davidson plans to purchase a new house in october 2013. the sale price of the house is 436000. he plans to pay
Using the data on the growth rate of Money and inflation, run a regression of the rate of inflation on the rate of growth of the money supply
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a study was conducted to estimate hospital costs for accident victims who wore seat belts. twenty randomly selected
There evidence that the mean price is higher at Whole Foods Market than at the Fairway supermarket and interpret the meaning of the p-value in (a)
a study was conducted to determine the impact of social media use on student learning. a total of 103 students taking a
What is the name of the counting rule used to find all the possible outcomes and how many different items can be uniquely numbered?
question 1an airline was interested in measuring the length of time customers have to wait in the queue prior to
You are expected to complete a project related to inferential statistics - show that the random variable X is exponential and compute the probability of the wait time when it is greater
Write a brief note stating the circumstances under which cusum charting may be preferable to normal Shewart charting methods and calculate the mean of the sample values below, and suggest a suitable value for k, the cusum reference value.
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