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Probability using Poisson distribution. Consider a Poisson distribution with a mean of two occurrences per time period.
a. write the appropriate Poisson probability function
b. what is the expected number of occurrences in three time periods.
c. write appropriate Poisson probability function to determine the probability of x occurrences in three time periods.
d. calculate probability of two occurrences in one time period
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
Create a frequency table for the total number of people that prefer each type of music:
What is an appropriate sample space for this experiment?
Use Excel and the data to test whether the mean alcohol expenditures for UCM students is equal to that of SBU students using a 1 % level of significance.
Here is a two-way table showing enrollment data for full-time undergraduate students in U.S. colleges and universities. The entries are thousands of students:
The mean time to download an Google video is 1 minute 30 seconds. Suppose the download time is normally distributed with standard deviation of 20 seconds.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
Which is the probability that the median of the sample is between $17 and $20?
Research question: Are mean crash damages same for these 3 vehicles? Crash1 Crash Damage ($).
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
How likely is it that the store owner will make at least $7,000 if she implements your suggestion?
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
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