2) What can be said about the correlation coefficient r of x and y where y = x² + 8x + 16, a takes the values of the first ten positive integers?r = 1O 0

2.To find the correlation coefficient (r) between x and y, where y = x^2 + 8x + 16, and x takes the…

Answered: 2) What can be said about the…

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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Pls explain the selected option in 5-6 sentence only Which of the following statement(s) are false? (Select all that apply.) a) Correlation measures the strength of a linear relationship between two quantitative variables.-1 ≤ r ≤ 1 b) The sign of r tells the direction of the linear relationship between two quantitative variables. c) The correlation has the same units (e.g., feet or minutes) as the explanatory variable. d) If the correlation between two quantitative variables is zero, then there cannot be a relationship between these two variables.
The table gives heavy - metal nuclear waste (in thousands of metric tons) from spent reactor fuel now stored temporarily at reactor sites, awaiting permanent storage. Waste y Year x 1995 32 2000 42 2010 61 2020 76 Let x = 0 represent 1995, x = 5 represent 2000 (since 2000 - 1995 = 5), and so on. a) For 1995, the ordered pair is (0, 32). Write the ordered pair for the data for the other years given in the table. b) Plot the ordered pairs (x,y). Do the points lie approximately in a straight line? c) Use the ordered pairs (0, 32) and (25, 76) to find the equation of a line that approximates the other ordered pairs. Write the equation in slope - intercept form and in standard form. d) Use the slope - intercept equation form from part (c) to estimate the amount of nuclear waste in 2005.
10:31 Determine whether the scatter diagram indicates that a linear relation may exist between the two variables. If the relation is linear, determine whether it indicates a positive or negative association between the variables. Use this information to answer the following. O A. The variables have a negative association. B. The variables have a positive association. C. The relationship is not linear. ||| 400- 300- 200- = 100+ 0- O 0 VO) 1 22 ...| 46 | 1 16% 2 Explanatory Do the two variables have a linear relationship? O A. The data points have a linear relationship because B. The data points do not have a linear relationship they lie mainly in a straight line. because they lie mainly in a straight line. $ OC. The data points have a linear relationship because O D. The data points do not have a linear relationship they do not lie mainly in a straight line. because they do not lie mainly in a straight line. If the relationship is linear do the variables have a positive or negative…
Which of the following best describes the relationship between the variables on the scatter plot below? 11 10 15 4 3. 2 1 1234 56 7 8 9 10 11 12 13 O A. linear association OB. no association OC. non-linear association OD. linear and non-linear association
Which of the following linear correlation coefficient suggest a perfect negative linear relationship between two variable value?A) r = 0.327 B) r = -0.721 C) r = 0 D) r = 1.6 E) r = -1
Let u =, v = and =. w Now, = is a linear combination of ū, v and w. That is, * = a₁ + a₂ + azú. Determine a₁, a2 and a3 a1 a2 = az || =
4) The following data gives the distribution of scores of 10 students in mathematics and statistics in a test. Find the correlation coefficient r (X,Y). Scores in Mathematics(X): 27 31 32 26 37 Scores in Statistics (Y): 31 34 26 32 37 a) - 0.359 b) 0 - 0.953 c) - 0.539 d) - 0.395 35 35 26 28 29 38 32 39 33 32
For which value of k is { (1, 2, 3), (1, 0, 1), (2, k, 8) } a linearly dependent set?

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2) What can be said about the correlation coefficient r of æ and y where y = x² +8x + 16, x takes the values of the first ten positive integers? O r=1 O 0