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Find the probability of correctly answering the first 2 problems.
Find out the probability of correctly answering the first 2 problems on a multiple choice test if random guesses are made and each problem has 3 possible answers.
Statistics and Probability, Statistics
Suppose a zero-mean Gaussian random process,X(t) , has a PSD given by We desire to simulate a 5-ms segment of this process sampled at a rate of 2 kHz. Therefore, 10 samples will need to be created in our simulation. We ...
A real number between 0 and l00 is randomly selected according to a uniform distribution and rounded off to the nearest integer. For example, 36.5001 is rounded off to 37; √3 is rounded off to 2; and 69.49 is rounded off ...
In a certain communication system, bits are encoded into blocks of length 128 bits. Error correction techniques are used such that the block will be decoded correctly as long as no more than 7 of the 128 bits are receive ...
Suppose that a certain college class contains 60 students. Of these,are 37 freshmen, 28 are economics majors, and 10 are neither. A student is selected at random from the class. (a) What is the probability that the stude ...
Construct a signal plus noise random sequence using 10 samples of: Where N[n] is a sequence of zero-mean, unit variance, IID Gaussian random variables, and the time between samples of the process. (a) Calculate the peri ...
It is known that 15% of US home mortgages are under water (i.e. the homeowner owes more than the house is worth). Suppose 18 mortgages are randomly selected (assume independence). Let the random variable X equal the numb ...
A box contains 11 two-inch screws, of which 6 have a Philips head and 5 have a regular head. Suppose that you select 3 screws randomly from the box. What is the probability that there will be more than one Phillips head ...
The mean salary offered to students who are graduating from Coastal State University this year is $24,230, with a standard deviation of $3678. A random sample of 85 Coastal State students graduating this year has been se ...
Input According to a survey, 59% of the residents of a city oppose a downtown casino. Of these 59% about 8out of 10 strongly oppose the casino. Complete parts (a) through (c). (a) Find the probability that a randomly sel ...
Let be a sequence of independent Poisson counting processes with arrival rates, Show that the sum of all of these Poisson processes, is itself a Poisson process. What is the arrival rate of the sum process?
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A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf
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Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise
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