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Suppose the probability density function for a random variable X equals the following:
f(x) = cx3 for {0 < x < 1}, f(x) = 0 otherwise. Where "c" stands for a constant value.
(a) Solve for the value of "c" that makes this a valid pdf. (Hint: please refer to the two necessary conditions of a pdf from the video introduction and .ppt.)
(b) Using integration, Find E(X) and the cdf, F(X). Use the value for "c" you found in (a).
(c) Use F(X) to find the P(0.25 < X < 0.50).
What role do statistics gathered from the database play in query optimization?
A major design consideration is how to organize the collection of free lists, which are distinguished by the length of the strings. Essentially, what is needed is a dictionary of free lists, organized by string lengths.
The compact disc system of digital audio uses two channels with TDM. Each channel is sampled at 44.1 kHz and coded using linear PCM with sixteen bits per sample.
Write an UPDATE statement that updates the CustomerAddresses view you created in exercise 1 so it sets the first line of the shipping address to "1990 Westwood Blvd." for the customer with an ID of 8.
Identify examples of how cultural values affect moral legitimacy and cyber ethics norms. How can cultural values, traditions, religion, the desire for higher economic status, or poor local law enforcement possibly affect the ability to regulate copyr..
Suppose the transmitter in part (a) can also be used to transmit a USB signal with an average power level of 50 watts. By how much (in dB) will the signal-to-noise ratio be improved when the transmitter is used in this way, compared with the situa..
A member of your development team is having problems deciding which decision model to use: either a decision tree or a decision table.
Watch the video titled "Understanding the Job." What is the "job" that your business seeks to fulfill? And, what are other ways that this job can be completed? Given this information, who are the main direct and indirect competitors to your busine..
Flip over this test. On the back of this test write your name in the upper, left-hand corner. What are the four parts of the compiling process
What are some of the benefits of using facial recognition technology? Describe some current and future applications of this technology.
For example, if a variable called list stores [18, 7, 4, 24, 11] and we make the call of list.stretch(3); the list should be changed to store [18, 18, 18, 7, 7, 7, 4, 4, 4, 24, 24, 24, 11, 11, 11]. If n is zero or negative, the list should become ..
Find the syntax errors in the definitions of the following classes. a. class AA { public: void print() const ; int sum(); AA(); int AA(int, int); private: int x; int y; }; b. class BB { int one; int two; public: ..
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