Question: How many 8-bits strings have exactly five 1's? How many strings over the alphabet{a, b}have length 20 and exactly 8 a's?

How many 8-bits strings have exactly five 1's?

How many strings over the alphabet{a, b}have length 20 and exactly 8 a's?

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 Mathematics Questions!

Q:

For each problem, display the equation used to form the answer. Leave combinations, permutations, factorials, and exponents intact. 7. (2 points) How many bit strings contain exactly five Os and 14...

Q:

help answering these questions for Discrete Struct class. I can not press show answer. doesnt work. For questions 2 and 3, express your answer as 'n choose r. Ex: 8 choose 3. 1) Define a bijection...

Q:

How many times is the string 10001000 counted in the erroneous argument given in Example 6.2.23? Like the Fibona pected places (eg. Ever! Section 7.11. Our next example illustrates a common en...

Q:

Question 1 Bit strings (strings that consist of only 0's or 1's) (20 points) 1. How many bit strings of length 10 begin with 1101? 2. How many bit strings of length 10 have exactly six 0:5? 3. How...

Q:

Thank you for the assistance, it is greatly appreciated. 1. Consider the following definitions for sets of characters: . Digits : {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} - Letters : { a, b, c, d, e, f, g, h,...

Q:

U ref use text name. for book search on google Show written solutions for all of the following problems. Unit 5: Counting Theory Text: A Spiral Workbook for Discrete Mathematics. 8.2: Addition and...

Q:

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...

Q:

In a Hopfield neural network configured as an associative memory, with all of its weights trained and fixed, what three possible behaviours may occur over time in configuration space as the net...

Q:

Provide a summary technical report with about Pipelined Execution which is also named as Instruction Level Parallelism, addressing mainly the following areas: 1. What is Pipelined Execution and its...

Q:

34-38 discrete math 34. A group consists of 10 kids and 2 adults. On a hike, they must form a line with an adult at the front and an adult at the back. How many ways are there to form the line? a....

Q:

A pharmaceutical manufacturer is concerned that the impurity concentration in pills does not exceed 3%. It is known that from a particular production run, impurity concentrations follow a normal...

Q:

Of the POB constructs that are covered in the chapter, which one do you think has the most potential for impacting employee performance? Why?

Q:

In the role of a private banker, regardless of their geographic location, there will be regulations in place to follow on behalf of the client and institution. Select all the statements that are true...

Q:

2023 1040 form 1.Phillip and Claire are married and file a joint return. Phillip is self-employed as a real estate agent, and Claire is a flight attendant. Phillip and Claire have three dependent...