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Question: Passing stats. Molly's college offers two sections of Statistics 101. From what she has heard about the two professors listed, Molly estimates that her chances of passing the course are 0.80 if she gets Professor Scedastic and 0.60 if she gets Professor Kurtosis. The registrar uses a lottery to randomly assign the 120 enrolled students based on the number of available seats in each class. There are 70 seats in Professor Scedastic's class and 50 in Professor Kurtosis's class.
a) What's the probability that Molly will pass Statistics?
b) At the end of the semester, we find out that Molly failed. What's the probability that she got Professor Kurtosis?
suppose we are testing the hypotheses h0 ? 100 and ha?lt 100. suppose the population variance is unknown. which sample
If the mean time between failures (MTBF) is 250 days, - what is the probability that at least one workstation will fail before the end of the warranty period?
An oil change company advertises that they can change the oil in your car in 15 minutes. Based on the data collected below, what is the probability that oil change will take more than 15 minutes?
(d) the value of K to yield a steady-state error of 25% of the magnitude A for the ramp input r(t) - At t > 0. Can this gain be utilized and achieve acceptable performance?
What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
When Admiral Byrd went to the North Pole, he wore battery-powered thermal underwear. The batteries failed instantaneously rather than gradually.
SAT verbal scores are normally distributed with a mean of 401 and a standard deviation of 91. Use the Empirical Rule to determine what percent of the scores lie between 310 and 492.
Compare the north american indian civilizations with those in mexico and south america?
The amounts of money requested on home loan applications at a particular bank follow the normal distribution, with a mean of $80,000 and a standard deviation of $24,000. A loan application is received during the day.
Find the probability that 4 of the 5 committee members belong to a union.Find the probability using hypergeometric distribution.
The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
Economists believe the dollar has a 0.23 chance of appreciating against European currencies soon. What is the probability the ships will sail full?
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