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Solve the following problems using linearity of expectation. . (For each problem you will want to think about what the appropriate random variables should be and define them explicitly.)
(a) A coin with probability p of coming up heads is tossed independently n times. What is the expected number of maximal "runs", where a "run" is a maximal sequence of consecutive flips that are the same? For example, the sequence HHHTTHTHHH has 5 runs, the first three H, the following two T, and so on.
(b) A certain bubble gum company includes a picture card of a famous basketball player in each pack of bubble gum it sells. A complete set of cards consists of n players. Suppose that every pack you buy is equally likely to contain the picture of any of the n players. Let X be the random variable which is the number of packs you need to buy to have a complete set. What is E(X )? (Hint: think about representing X as the sum over i of the number of steps needed to go from having a set with i distinct players to i + 1 distinct players.)
The network administrator mentions that other ".cde" files have been sent through an FTP server to another site. Describe your findings after conducting an Internet search for ".cde" files.
Write down most significant factors contributing to MMCC's success with its new, secure, self-managed network? Describe the reasons for your choices.
You have been asked to present a presentation to law school class on digital crime. After presentation, a student asks why so few people are really prosecuted for computer crime.
The final method to include IT is not to go "looking for IT solutions" just for sake of using IT. But to have IT at the table to truly think about ways to develop workflows.
Why does piracy exist in past and present? Describe why are (were) pirates difficult to eliminate? What to you believe about pirates as moder-day Robin Hoods?
Describe the history of portfolio design in the graphics design industry, and role of a graphic designer. Discuss current trends in portfolio design, and the possible future technologies for the industry.
Compare the performance (using AMAT) of a one-level split cache and a two-level unified cache system. For the one-level split cache, suppose a hit takes 2 clock cycles.
If organization has three information assets to estimate for risk management as shown in accompanying data, which vulnerability must be evaluated for additional controls first?
A federal agency that does not use IT acquisition best practices issued a request for proposal that requires the contractor selected to use such practices, including certification at CMMI Level 3 or above.
Why is it so imperative for an organization, regardless of size, to explain a Business Model, and then look for which IT solution to utilize as a strategic weapon?
Create a C program that takes an integer argument from the command line and outputs sum of all digits of the integer. For example, the result of the invocation sum of digits 12345 should be fifteen.
how much memory is required to store the picture? How much video memory is required to store the picture as a ''true color'' image, at 3 bytes per pixel?
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