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In the laboratory 10-10 torr is a high vacuum. Use the ideal gas equation of state to estimate the number of molecules in one cubic millimeter of a gas at this pressure when the temperature is 20 °C?
15.2 Air is approximately 80% N2 and 20% O2.
(a) Estimate the average molecular weight of air.
(b) Estimate the root-mean-square speed vrms of air molecules at 30 °C.
A business in a proposed business venture, Stephanie Morrison estimates that there is a 60% chance she will make 80, 000 and a 40% chance she will lose $20,000. Determine Stephanie expected value.
a professor at a loca community noted that the grades of hi s students were normally distrubuted with a mean of 74
A score of on the college entrance exam. Assuming that average refers to the mean, which of the following claims must be true based on this information?
If Accrotime guarantees full refund on any defective watch for 2 years after purchase, determine percentage of total production will company expect to replace?
nine hundred 900 high school freshmen were randomly selected for a national survey. among survey participants the mean
Now assume that failed items are not replaced during the test. UsingHandbook H--108, determine the plan assuming the time to failure is exponential.
Show the sampling distribution of p and what is the probability the Times/CNN poll will provide a sample proportion
You are investigating the flight characteristics of different kinds of birds. You collect a sample of 33 European swallows (Hirundo rustica) and measure their air-speed velocity in a borrowed wind tunnel.
Mr.Smith works on a temporary basis. The mean length of each job he gets is three months. If the amount of time he spends between jobs is exponentially distributed with distributed with mean 2, then at what rate does Mr. Smith get new job?
Hypothesis test for dependent samples and Has satisfaction with MHMR services changed since the January survey
Using the following data, test the question that an equal number of Democrats, Republicans, and Independents voted during the most recent election.
Find the probability that every person who shows up for the flight will find a seat available - If a country has 100 nuclear plants, estimate the probability that there is at least one such accident during a given year.
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