4D1, 4D2, 4D3

Download the attached files: “Activity 4D1 Instruction Sheet”, “Amortization Template Sheet”, and “Activity 4D1 Answer Sheet”. Read through the contents of the Instruction Sheet and perform the activity as instructed

Download the attached files: “Activity 4D2 Instruction Sheet”, “Amortization Template Sheet”, and “Activity 4D2 Answer Sheet”. Read through the contents of the Instruction Sheet and perform the activity as instructed

Download the attached files: “Activity 4D3 Instruction Sheet”, “Financial Toolboxes”, and “Activity 4D3 Answer Sheet”. Read through the contents of the Instruction Sheet and perform the activity as instructed

2-3 Assignment: Real Estate Analysis Part I

Smart businesses in all industries use data to provide an intuitive analysis of how they can get a competitive advantage. The real estate industry heavily uses linear regression to estimate home prices, as cost of housing is currently the largest expense for most families. Additionally, in order to help new homeowners and home sellers with important decisions, real estate professionals need to go beyond showing property inventory. They need to be well versed in the relationship between price, square footage, build year, location, and so many other factors that can help predict the business environment and provide the best advice to their clients.

You have been recently hired as a junior analyst by D.M. Pan Real Estate Company. The sales team has tasked you with preparing a report that examines the relationship between the selling price of properties and their size in square feet. You have been provided with a Real Estate Data spreadsheet that includes properties sold nationwide in recent years. The team has asked you to select a region, complete an initial analysis, and provide the report to the team.

Note: In the report you prepare for the sales team, the response variable (y) should be the listing price and the predictor variable (x) should be the square feet.

Specifically you must address the following rubric criteria, using the Module Two Assignment Template:

Generate a Representative Sample of the Data
Select a region and generate a simple random sample of 30 from the data.
Report the mean, median, and standard deviation of the listing price and the square foot variables.
Analyze Your Sample
Discuss how the regional sample created is or is not reflective of the national market.
Compare and contrast your sample with the population using the National Statistics and Graphs document.
Explain how you have made sure that the sample is random.
Explain your methods to get a truly random sample.
Generate Scatterplot
Create a scatterplot of the x and y variables noted above and include a trend line and the regression equation
Observe patterns
Answer the following questions based on the scatterplot:
Define x and y. Which variable is useful for making predictions?
Is there an association between x and y? Describe the association you see in the scatter plot.
What do you see as the shape (linear or nonlinear)?
If you had a 1,800 square foot house, based on the regression equation in the graph, what price would you choose to list at?
Do you see any potential outliers in the scatterplot?
Why do you think the outliers appeared in the scatterplot you generated?
What do they represent?

https://learn.snhu.edu/content/enforced/955802-MAT-240-H3886-OL-TRAD-UG.22EW3/course_documents/MAT 240 National Statistics and Graphs.pdf?_

Trigonometric Functions Final Project – Hurricane Harvey

As a reminder, your poster should include…
General information about a specific hurricane/tropical storm, including…
Dates, wind speed(s), fatalities, damages, etc.
Information about the hurricane’s location, including…
At least two positions modeled by the equation of a circle on Desmos and
The distance between the centers of the two circles modeled above
Information about the weather patterns of a city that was impacted by your hurricane, including…
At least two weather phenomena modeled by trigonometric functions on Desmos


Please include SOURCES on poster!

i need this well done

Write a script to create the following arrays (10 points).r = [100, 99, 98, . . . , 2, 1]
s = [0,199,299,…,9899,1]
Create a 3-by-2 array of random numbers
Concatenate the matrix in part (c) horizontally to a 3-by-1 array of random numbers

Suppose that $1000 is left to sit in a bank account that pays 8% interest per year, compounded annually. (20 points)
Write a function that takes N as input and finds the account balance after N years. Use for loop.
Repeat (a) without using any loop.
For −π/2 ≤ x ≤ π/2, with point spacing Δx = 1/50:
Plot sin(x), cos(x), tan(x), and exp(x) in a single plot. Make sin a red line, cos a black dotted line, tan a blue line, and exp a green dashed line. Make a legend. Label your axes and give the figure a title. Set the y axis to be -1<y<1. (20 points)
Extra credit. Write a script that finds the x values at which cos(x)=exp(x). (hint: use find function for |cos(x)-exp(x)|<0.001) (5 points)
While. Write a script that takes an integer, N, from the user input. Then computes the largest integer k such that 2k<=N. For example, if N =100, then k would be 6, because 2^6=64 100.
Display/print the message showing the k value: ‘the largest integer k is ….’
Hint: initially, set k=0. In a while loop, check if 2^k is less than N, if not, break the loop. (25 points)
Choose only one question (25 points). You can get extra credit for solving two or three questions:
5. Function, switch statement. Write a function that takes two square matrices of the same size and an operator name as inputs and apply the operator on the two matrices. The operator name can be ‘ ’, ‘-‘, ‘*’, and ‘/’. For example, when the function opName input is ‘ ‘, the function calculates A B; when the function opName input is ‘-‘, the function calculates A-B.
Function C = ApplyOp(A, B, opName)
Switch opName
Case ‘ ’

In your main script, create the following matrices and call your function with all operators.
Function. You work for an engineering design firm that has been contracted to evaluate the concentration of pollutants. A tall chimney releases (20 kg/s) of smoke into a steady uniform wind of speed (u( m/s)). An expression for the decay of the peak pollutant concentration C(ppm) with distance downwind is given as:
C(x,y,z)=M4πρDx.e−(y2 z2)u4Dx
Assuming that the diffusion coefficient D to be 0.01 m2/s, and the density of air to be ρ=1.225kgm3
Write a function which gets the location(x,y,z) and the wind speed, u, as inputs and calculates the pollutant concentration.
Call your function to find how pollution concentration at location (x=3000, y=0, z=10) changes with wind speed 0<u<12 m/s. Plot the pollution concentration vs wind speed.
Loops and flow control. Make function called loopTest(N) that loops through the values 1 through N and for each number n it should display ‘n is divisible by 2’, ‘n is divisible by 3’, ‘n is divisible by 2 AND 3’ or ‘n is NOT divisible by 2 or 3’. Use a for loop, the function mod or rem to figure out if a number is divisible by 2 or 3, and num2str to convert each number to a string for displaying. You can use any combination of if, else, and elseif

Multivariable Calculus (Seabird: 15/12/2021)

E–x-a-m Time: Dec 22nd Wednesday, 10:30 to 11:45 amDuration: 1 hr 15 minutesQuestion structure: The examination will consist of short and long answer questions. The questions will be comparable to those covered in class; therefore, the best form of revision will be to work through lecture and tutorial questions, exercises and problems.Topic covered: Chap 10.8, 11.1, 11.2