2. Use the table of measurements of length and force thatyou have been supplied with to complete the followingactivities:T(a) Draw a scatter graph for your given data. Describewhat the scatter graph is indicating.(b) Use the scatter graph to estimate the length for aforce of 57N(c) Calculate the line of regression of extension onforce (Y on X)(d) Calculate the regression coefficient(e) Explain what the regression coefficient indicates?(f) Use the equation for the line of regression topredict the length for a force of 57N(g) Compare the calculated value with the value thatyou have determined from the scatter graph. Candidate12Force (N)Length (mm)Force (N)Length (mm)09010Q22010920105402204020060305603208042080410

Answered: Image /qna-images/answer/e52ab313-72c7-4a7f-9f96-dcdeecbbed0f.jpg

Answered: 2. Use the table of measurements of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Find the equation of the tangent and the equation of the normal to the curve y = x + at the point where z = 2. O a. Equation of Tangent: y=3x + 1, Equation of Normal: 3y + 8x = 31 O b. Equation of Tangent: 4y = 3x + 4, Equation of Normal: 6y + 8x = 31 %3D O c. Equation of Tangent: 4y = x + 4, Equation of Normal: 6y + x = 35 O d. Equation of Tangent: 4y = 3x – 4, Equation of Normal: 6y – 8x = 31
a) Draw a best-fit line by hand or use the linear-regression feature of Graphical Analysis, and determine the slope. The slope can be used to determine the acceleration of the ball on an incline of any angle. b) Repeat the analysis for the low friction dynamics cart.
An unknown metal has been found and the following experimental results have been tabulated in the table below. The table contains the grams of the unknown metal and the volume in milliliters of water displacement. Find a linear model that expresses mass as a function of the volume. grams Volume in ml 17 174.8 19.5 208.6 22 230.8 24.5 257 27 280.4 29.5 312.5 32 329 A) Write the linear regression equation for the data in the chart. Volume x + where x is the grams of the unknown metal. Round your answers to 3 decimal places B) If the mass of an unknown metal is 15, using your un-rounded regression equation find its predicted volume. Round your answer to 1 decimal place. mL
I need the right answers to a and b.
Need answers for C) and D)
An unknown metal has been found and the following experimental results have been tabulated in the table below. The table contains the grams of the unknown metal and the volume in milliliters of water displacement. Find a linear model that expresses mass as a function of the volume. grams Volume in ml 15 205.9 16.5 224.3 18 244.7 19.5 267.7 21 279.7 22.5 312 24 326.2 A) Write the linear regression equation for the data in the chart. Volume where x is the grams of the unknown metal. Round your answers to 3 decimal places B) If the mass of an unknown metal is 13, using your un-rounded regression equation find its predicted mL volume. Round your answer to 1 decimal place.
For a week prior to their final exam, a group of friends collect data to see whether time spent studying (r) had a strong correlation with their marks on the exam (y). The collected data is summarized in the following table: Time Spent Studying (hours): 10 11 15 14 7 6. Exam Grade (%): 71 67 81 93 54 66 а) Plot the data (y versus æ). Produce a regression of y against r and report an r? value for this fit. Add the b) regression line to the plot in a). Do you think that the regression line captures the most important features of the data set reasonably well? c) At a 5% significance level, is there a significant linear relationship between the x and y? Does this result agree with the conclusion you made in b)? Testing at a 5% significance level, can you say that Bo is not zero? How does d) this conclusion agree with the plot in a)?
Which best represents the Slope-field and streamlines for dy — 3 — у? dt 0.2 04 0.6 08 05 1.5
Answer D E F

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