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# Category: Mathematics

## Why or why?

Survey & Graph Project Part 2 This assignment is the second part of a two-part assignment in which you practice the first three steps of the statistics process: 1) Asking a research question, 2) collecting data, and 3) describing the data. Directions For your written assignment, you should do the following: Give your survey to individuals to answer. If in Part 1 you said that you In your assignment, please include the answers to these questions: 1.Briefly describe your surveying experience: What obstacles did you face — if any — as you gave out your survey? Did you get all the responses you wanted? Why or why? Did you change your sampling method? Please explain. 2.Construct a table that has the following (use the table in Example 2 on page 64 as a model): 3.Frequency distribution 4.Relative frequency distribution 5.Construct 2 bar graphs of the following (use the bar graphs in Example 3 on page 65 as a model): 6.Frequency distribution 7.Relative frequency distribution 8.What conclusions can you come to? In other words, what do think your data is telling you? 9.What is the answer to your research question? I have already written part 1 several weeks ago and I copy paste part 1 that you could see,I attached files there was bar graphs in pages,you should use them for part 2

Produce the following formulas for the information below : Formula for Excel to prove out Loans are eligible Transaction type: Formula to show that True to “Purchased” loans for ACE and LCA TLTV: formula to prove out 80% is what is in column X Occupancy Status: Formula to prove either Primary residence, second home or investment property is true in column X Rep & Warrant decision: Formula to prove out “eligible” as true for column X Property Value: Formula for purchases, if “-15% <= (Property value – HVE)/HVE <=15%” , brake down but try to use the complete formula Appraisal Effective date: Formula to prove out effective date of appraisal is no more than 120 days old

Will be sending the assignments as you finish the previous. There will be assignments, quizzes, and tests. 2 math culminating during January. Am willing to pay more.

1)The assignment consist in selecting your individual state of the US to work with( discuss this selection as first come first served in the group chat to avoid repretitions that are not permitted) 2) Collect real data from the elections department in that state about the historic popular vote for the candidates in every presidential election for that state of your selection( note that data can be copied and paste in minitab directly from an excel format, no need to type one by one) 3) Collect from the national election department the popular and the electoral votes of the candidates from every presidential election in the hisoiry of the country 4) Describe the characteristics of the popular vote in the state of your choice, with a formal and documented statistical report as explained in class, be creative, specific to your data and detailed using the strategy shown in class ( you may replay the meetings) 5 ) Explain the correlation and its significance between the popular vote from your state and the national outcome in popular votes 6) Explain the regression analysis and its significance between the popular vote from your state and the national outcome in popular votes 7) Produce a bar graph comparing the electoral vote and the popular vote in the last six presidential elections 2020 you may use in this point the features of excel if you find it convenient) 8) Produce your conclusion about the evidence you may find in that last bar graph for further use in categorical by-variate data

## Incorrectquestion 6

Question 1

1 / 1 pts

Another word for ‘average’ is ‘mean’.

True

YES!

False

Question 2

1 / 1 pts

A line that goes from the lower left of a graph to the upper right has a positive slope.

positive slope.png

True

Great!

False

Question 3

1 / 1 pts

The shape of the distribution called the normal distribution is

positively skewed.

a pie chart.

a regression line.

bell-shaped.

UnansweredQuestion 4

0 / 1 pts

Given the following equation for a line: Y = 2X + 4

If X = -4, Y =

UnansweredQuestion 5

0 / 1 pts

Given the following equation for a line: Y = 3X + 4

If Y = -2, X =

IncorrectQuestion 6

0 / 1 pts

3/4 + 2/3 – 1/5

not enough information to answer

> 1

= 1

< 1

Question 7

1 / 1 pts

In a group of 80 psychology majors, 60% are female. How many female psychology majors are in this group?

48%

48

60%

60

IncorrectQuestion 8

0 / 1 pts

Σ(X2) = (∑X)2

True

Maybe you don't recognize that Greek Symbol, . It is the summation symbol.

False

IncorrectQuestion 9

0 / 1 pts

If X = 2 and Y = -5, then XY =

3

.

If X = 2 and Y = -5, then √(-5Y) =

. (√ is the symbol for square root.)

If X = 2 and Y = -5, then 2X2 – 3Y3 =

.

Answer 1:

3

Answer 2:

(You left this blank)

Answer 3:

(You left this blank)

UnansweredQuestion 10

0 / 1 pts

Compute Sophia’s GPA from her fall semester course grades, provided below, with number of credits.

Grade points are: A: 4, B+: 3.5, B: 3, C+: 2.5, C: 2, D: 1, F: 0

Provide only the answer, rounded to 2 decimal places.

American History since 1950: A (3 credits)

Algebra II: B+ (4 credits)

Principles of Sociology: A (3 credits)

Biostatistics: C+ (4 credits

UnansweredQuestion 11

0 / 1 pts

Samira is nearing the end of her biology course and she’s wondering what her current average is, going into the final. Using information from her syllabus she sees the following.

Tests: 50% of course grade

Lab write-ups: 30% of course grade

Pre-labs: 15% of course grade

Attendance at Zoom Lectures: 5%

Samira’s grades are as follows:

Test 1 = 90%

Test 2 = 85%

Test 3 = 78%

Lab 1: 99%

Lab 2: 100%

Lab 3: 85%

Lab 4: 100%

Lab 5: 93%

Her Pre-lab average is 90%.

Her Attendance grade is 100%.

Compute her current grade based on this information:

Provide only your answer, rounded to 2 decimal places.

I have to submit an assignment by this Saturday. I have attached the instructions below. I started filling out all the information I could. I don’t know how to do the rest of the assignment. Great appreciate the help!

Select two questions from the following list:

Explain what is meant by the nth root of a number.

Explain the difference of finding the nth root of a number when the index is even compared to when the index is odd.

Show two different algebraic methods to simplify 4^(3/2). Explain all your steps.

Explain when a radical expression is in simplest form.

Explain what is meant by the word rationalize in the phrase, “rationalize a denominator.”

Explain how to find the domain of a fourth root function.

Explain why the process of finding the domain of a radical function with an even index is different from the process when the index is odd.

Explain how dividing complex numbers is similar to rationalizing a denominator.

2. Prepare the solution to the selected exercise showing the solution on a step-by-step basis. If your response is a descriiption of a process, concept, or problem-solving technique then be sure to show at least one example to support your post.

3. Check the solution if possible.

4. Discuss the method of solving the exercise that was used and possible real-world applications that could be solved with the same technique.NEED TO USE THE REFERENCE PROVIDED IN ATTACHMENT PLEASE.

Write a research paper on digital signatures and certifying authorities including their relation to RSA Public and Private Key encryption. This research paper should be at least 800 – 1100 words and include references to the legal status in developed nations, the mathematics behind the technology, what are the major recognized authorities, and the likely future for this technology/business practice. The researcher should find the major US entities and how they relate and trust each other. On the legal topic, the researcher should find national and state laws and standards. You may also find laws from other countries and international organizations. Since many of these laws are now a decade or more old, we could also find legal interpretations of the law itself.

For this project, complete some basic research on the trust infrastructure of the internet. This research should include Digital Signatures, Certify Authorities, Public Key Infrastructure, RSA, and the laws that support these entities. Be sure to include the following relationships:

1) The differences between digital signatures and electronic signatures.

2) Identify a digital signature and how it might be better than a holographic signature (good old pen on paper).

3) Describe Certifying Authorities, identifying who they are and the whole PKI (Public Key Infrastructure).

4) Describe some of the laws that make this technology legally binding.

5) Discuss some of the math behind RSA/Public Key Cryptography.

In researching this topic, I hope that you can provide a clear explanation of how all this works to provide security, authentication, and non-repudiation in the online environment. This topic becomes more and more relevant every day as we do more and more business and live more and more of our lives online.

Please cite two or more authoritative sources. Government sources are a good source for the legal aspects of trust on the Internet. Reputable vendors (the companies that operate some of these services) often have good resources on how these entities work. Finally, research and industry standards organizations are also excellent sources.

## Research on diophantine equations.

Diophantus was a great mathematician who studied and wrote about problems with two or more unknowns where the solutions were limited to whole numbers. An example of a Diophantine problem is: “If twice Betty’s age in years plus Joe’s age in years equals seven, how old are Betty and Joe?” Solve this problem, and then explain why it falls into the category of Diophantine equations.

He researches the Diophantine equations in-depth and uses the information he gathers to help present these types of problems to a group of students.

Prepare a lesson plan for grade 5 of elementary, the duration of the lesson, the materials, the objective, the standard, the vocabulary, the procedure (step by step), the evaluation, the activity for printing to each student, and the extension. Be sure to include a comprehensive self-assessment of the lesson.

Details

Research on Diophantine equations.

Use research to support activities.

the activity for printing to each student

The completeness of the lesson plan.(Step for step)

Field test evidence of the lesson.

Assessment

Carrying out an accurate self-assessment (comprehensive self-assessment of the lesson.)