Question: 3.13 Probability Bounds You are told that the average file size in a database is 6K. (a) Explain why it follows (from the definition of

3.13 Probability Bounds You are told that the average file size in a database is 6K.

(a) Explain why it follows (from the definition of expectation) that fewer than half of the files can have size > 12K.

(b) You are now given the additional information that the minimum file size is 3K. Derive a tighter upper bound on the percentage of files that have size > 12K

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

You are told that the average file size in a database is 6 K bytes. ( a ) Explain why it follows ( from the definition of expectation ) that fewer than half of the filescan have size > 1 2 K . ( b )...

Lesson 12 Quiz (Show/Explain all Work) IST 230 Relations on Sets, Databases 1. Let A = {0, 1, 2, 3, 4, 5, 6, 7, 8} and B = {1, 2, 3, 4, 5, 6, 7, 8}. Now let R be a binary relation R from A to B such...

Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...

Describe how to construct the function cpo ((D E), v) of two cpos (D, vD) and (E, vE). Prove that ((D E), v) is a cpo. (You may use facts about least upper bounds provided you state them clearly.)...

Hi. I'm asked to take this class for graduation but I don't know how to do any of this. Please help me! I'm already devastated with the whole concept and Finance is new to me. Idk what I'm doing in...

Probability and Statistics - Problem Set c Keith M. Chugg October 2, 2015 1 Preliminaries, Combinatorics, Set Probability 1.1. A number of bats are in a cave. 2 bats can see out of their left eye. 3...

Exercises Chapter 2 2.1 Marginal and conditional probability: The social mobility data from Section 2.5 gives a joint probability distribution on (Y1 , Y2 )= (father's occupation, son's occupation)....

SAMPLING MEAN: DEFINITION: The term sampling mean is a statistical term used to describe the properties of statistical distributions. In statistical terms, the sample mean from a group of...

can someone solve this Modern workstations typically have memory systems that incorporate two or three levels of caching. Explain why they are designed like this. [4 marks] In order to investigate...

Where are stock options traded? What is the exchanges role in the trade?

Figure 3 shows the mechanism of a radial valve gear. The crank OA turns uniformly at 150 RPM and is pinned at A to rod AB. The point C in the rod is guided in a circular path with D as centre and DC...

1. Which INT 10h function draws a single pixel on the video display?

3 Do any of the expected values in Table HS - 1 - 1 differ substantially, from the resting values in Table HS - 1 - 3 ( YIN ) ? Y if sa , state which values differ, and suggest a likely explanation...

Define and graph the probability distribution function for the number of sandwiches sold by a sandwich shop. This shop offers sandwiches that have a price of $3.00 each.

=+ Is the information documented and verifiable?

=+ Is the information presented in an objective manner?