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For the last 300 years, extensive records have been kept on volcanic activity in Japan. In 2002, there were five eruptions or instances of major seismic activity. From historical records, the mean number of eruptions or instances of major seismic activity is 2.4 per year. A researcher is interested in modeling the number of eruptions or major seismic activities over the 5-year period, 2005-2010.
a. What probability model might be appropriate?
b. What is the expected number of eruptions or instances of major seismic activity during 2005-2010?
c. What is the probability of no eruptions or instances of major seismic activities during 2005-2010?
d. What is the probability of at least two eruptions or instances of major seismic activity?
From the given polynomials, identify the polynomials of degree one. A function gives the value of C as 2 × (22/7) × r. Find C when r = 7 cm and r = 91 cm.
in a general population what is the probability of your classmate being male?using the data collected from the student
here is data withnbspynbspas the response variable. xy
Determine the 95 percent confidence interval and the 95 percent prediction interval for the selling price of a home with 2,200 square feet.
Describe how the confidence intervals will change depending on whether the population standard deviation is known or unknown.
chi-square test for independent attributes.on the most recent tax cut proposal a random sample of democrats and
an open-label study where participants are aware of the treatment they are taking is run to assess the time to pain
What level of confidence did the statistician use in constructing this interval? Explain carefully, showing all steps in your reasoning. Hint: sample proportion is the midpoint of the stated confidence interval.
School bullying is a form of aggressive behavior that occurs when a student is exposed repeatedly to negative actions from another student. Give a point estimate for the proportion of boys who claimed they have never bullied another student
Assume that this city has 1100 shoppers aged 12 to 14 years and 900 shoppers aged 15 to 17 years. Find the mean amount spent per person per month by shoppers aged 12 to 17 years in this city.
Find the expected value and variance for the number of tosses of a coin until the nth occurrence of a head.
1. the diameter of a spindle in a small motor is supposed to be 5 mm. if the spindle is either too small or too large
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