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Unit Practice: Descriptive Statistics

Unit Practice: Descriptive Statistics

Mr. Evans is considering offering a second after-school tutoring session for his math students each week. He records the number of students who attend his current sessions each week. The results from the last twelve weeks are shown in the dot plot below.


Which statement properly describes the data?
The data is symmetric.
The data is skewed right.
The data is skewed left.
There is not enough information to determine if the data is skewed.
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another exam math exam that is

Dear Students, I hope you’re doing well. Exam 2 will be posted on Google Classroom shortly. Before posting the exam, I just wanted to go over what you should focus on. The exam has 5 questions. It covers the material after Exam 1 (Sections 1.6, 1.7, 2.1 and 2.2). Please read the directions carefully on the exam. Question 1 is on Kruskal’s Algorithm for finding minimum spanning trees from Section 1.6. I’ll give you a graph and ask you to use Kruskal’s algorithm to find the minimum spanning tree. Question 2 is on the greedy coloring algorithm from Section 1.7. I’ll give you a graph and ask you to determine the “color” of each vertex. Just as in the lecture, you will represent colors by numbers. You can write the number within the vertex or make your own separate table (you don’t have to do both). Question 3 is also on the greedy coloring algorithm. It is a similar problem to question2. Question 4 is from Section 2.1. It gives the results of a hypothetical election. You will determine which candidate won a plurality of the votes. You will also determine if any candidate won a majority of the votes. Question 5 is from Section 2.2. It will give the results of an election method that is obviously unfair. You will determine if the unfair voting method fails the anonymous criterion, neutral criterion, and/or the monotone criterion. Again, please read the directions carefully. I will post the exam shortly. The due date is this Friday 12/17 at 11:30 AM. I plan to be available for questions later today from 4:00 – 5:00 PM via Google Meet. I’ll Email you a link at that time. I also plan to be available on Thursday from 11AM – 12 noon via Google Meet. Again, I’ll Email you a link at that time. To work on the exam (same as last time): You can print out the exam and write your answers directly on it. Alternatively, you can just use your own paper to write out the answers. When you are finished, take pictures of your exam and submit the files on Google Classroom. I will also post instructions for uploading files to Google Classroom. As you can see, I am giving you lots of time to complete the exam. I think the Friday 12/17 deadline is fair. Please submit your exams by the deadline. If you have any questions, please send me an Email. However, please take advantage of the time that I will be available on Google Meet because I can answer your questions quickly at those times. You are free to refer to the recorded lectures on Google Classroom if you would like to during the exam. Good luck on the exam!!!

well-organized essay discussing the three topics you most enjoyed learning in MTH100. Use the five-paragraph format and make sure the following is contained in your essay:

Mathematics Assignment Help Compose a well-organized essay discussing the three topics you most enjoyed learning in MTH100. Use the five-paragraph format and make sure the following is contained in your essay: CHOOSE ONLY (3) TOPICS Adding and Subtracting Polynomials Exponents and Polynomials Rational Expressions and Their Simplification Factoring Polynomials Error Analysis A General Factoring Strategy Quadratic Equations and Functions Radicals, Radical Functions, and Rational Exponents Topic must be explained utilizing words, not math symbols (i.e. use the words greater than, not symbol (>). You must explain why you enjoyed the topic. Each topic should include an application to real-life. Grading Rubric The format is worth 20%. The first paragraph should introduce your thesis. The next three paragraphs should comprise your support of your thesis. The last paragraph should be the conclusion and should tie it all together. The accuracy of facts and the substance and thoroughness of your arguments for your thesis are 60%. This includes the requirements listed above. Clarity and mechanics are worth 20%. Your essay must be word-processed and spell-checked. Complete sentences are expected.

create a linear relation in the form y=Mx b with the following criteria: the slope is a fraction ( with denomator other then 1/-1), the initial value is between -10 and 10. B) students will create an equation of a line that is parallel to the line that they created in part a. C) create a equation of a line that is perpendicular to the line that they created in part A , with a diffrent initial value than the one used in part a. D) students will graph all three lines using the slope and y- intercept method, making sure to label each line with its equation. E) students will identify as my point(S) of interest on the graph and state any point(S) of intersection.

A:Students will create a linear relation in the form y=Mx b with the following criteria: the slope is a fraction ( with denomator other then 1/-1), the initial value is between -10 and 10. B) students will create an equation of a line that is parallel to the line that they created in part a. C) create a equation of a line that is perpendicular to the line that they created in part A , with a diffrent initial value than the one used in part a. D) students will graph all three lines using the slope and y- intercept method, making sure to label each line with its equation. E) students will identify as my point(S) of interest on the graph and state any point(S) of intersection.

7 questions

Write a script to create the following arrays .
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.
3.For ??/2 ? x ? ?/2, with point spacing ?x = 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 th.e 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)
4- 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 ‘ ’
C=…;

In your main script, create the following matrices and call your function with all operators.
A=421020109,B=340715095
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)=M4??Dx.e?(y2 z2)u4Dx
Assuming that the diffusion coefficient D to be 0.01 m2/s, and the density of air to be ?=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.




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computational finance question use matlab

For this assignment, you need to use Matlab to answer these questions. I need the full script, like the sample solution I provided. I provide an example, you can refer to the style of the answer, but the topic is not the same, for reference only.

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