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Suppose that there are 30 people in your statistics class and you are divided into 15 teams of 2 students each. You happen to mention that your birthday was last week, upon which you discover that your teammate's mother has the same birthday you have (month and day, not necessarily year). Assume that the probability is 1/365 for any given day.
a. What is the probability that your teammate's mother would have the same birthday as yours?
b. Suppose that your teammate has two siblings and two parents, for a family of size five. What is the probability that at least one of your teammate's family has the same birthday as yours, assuming their birth dates are all independent?
c. Is the fact that your teammate's mother has the same birthday as yours a surprising coincidence? Explain.
twenty years ago postal employees worked for the postal service an average of 7.5 years. recently a sample of 100
Suppose we approximate the demand of a randomly selected ATM user by the Normal distribution
Other group (drawing 6 slips without replacement from among 45). What is the probability that at least one of the shifts will be unrepresented in that sample of workers?
How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without g..
Determine the probability mass function of the salesperson's November sales (in $). What is the probabiity that his sales for November will be less than 100k? Find the mean and standard deviation of the November sales.
a coffee company wants to make sure that there coffee is being served at the right temperature. if it is too hot the
A research study will measure the cost of the new method over a sample production period. Develop the null and alternative hypothesis most appropriate for this study.
The population of SAT scores forms a normal distribution with a mean of µ=500 and a standard deviation of o =100. If the average SAT score is calculated for a sample of n=25 students,
A. What is the probability of discovering that your five best friends all have cellphone numbers ending in 7?
The frequencies of each of the combinations were used to calculate the probabilities that you see below in relation to the outcomes of drinks and snacks.
find an online report of a simple research study that includes statistics. you must include website link to the report
Give an example of a situation in which multiple linear regression, discriminate analysis, canonical correlation, and multivariate analysis of variance might be used.
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