1 51. A transport engr. observed that in five zones of the city, the number of gasstations (Y) in relation to the population (X) in 1000's was: (as shown in the table)Determine the model representing the change of each variable and the explainthe relationship by means of you coefficient of determinacy.X3 2Y754.3.2.

Answered: Image /qna-images/answer/3f21c7b5-04b5-4b3c-9539-f51e3cfc8ebf.jpg

Answered: 15 1. A transport engr. observed that…

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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Match each scatterplot to the statement that best describes it. : 12 12 10 10- 2 6- 4 4 2- 2- 10 12 6. 12 (a) (b) 12 12 10- 10- > 6F > 6- 4 2 10 12 10 12 (c) The relationship between x and y is approximately linear. The relationship between x and y is nonlinear. iii. There isn't much of any relationship between x and y. iv. The relationship between x and y is approximately linear, except for an outlier. i. ii.
You don't have to write in Arabic
2. On many graphing calculators, equations must be entered in y = formew ww.ha mof a. z = 3y + 6 b. z = 5y – 10 c.z = y? d. z = 2y – 4 e. z = (y – 5)²
5
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1 3 Calculate (r+y)e drdy 0 2
3. You have the information that the number of cases of influenza on Dec 31 (day 0) was 29 and on day 5 there were 32 cases. Define variables: t = time in days since Dec 31C = number of cases a. Assume this situation is linear. Write a formula for this situation b. Use your linear formula to determine when the number of cases will hit 128. days from Dec 31 ( show work)
20. A weather balloon is released from a tower. The graph shows the balloon's height above the ground, y, after x seconds. Weather Balloon 100 90 80 70 60 50 40 30 20 10 10 20 30 40 Time (seconds) 50 Which equation best represents the relationship between x and y? TEKS 6.6C F. у %3D х + 25 G. X %3D у + 25 Н. у %3D 25х J. x = 25y Height (feet)
Does stress affect the recall ability of police witnesses? This issue was studied in an experiment that tested eyewitness memory a week after a nonstressful interrogation of a cooperative suspect and a stressful interrogation [the way of questioning] of an uncooperative suspect. The numbers of details recalled a week after the incident are summarized in the margin (based on data from "Eyewitness Memory of Police Trainees for Realistic Role Plays," by Yuille et al., Journal of Applied Psychology, Vol. 79, No. 6). Use 0.01 level of significance to test the daim in the artidle that stress decreased the amount recalled. Assume equal population variances. Nonstress Stress n = 40 X= 53.3 n2 = 40 = 45.3 S, = 13,2 S = 11.6 a. Claim (in symbolic form): Ho: На: b. level of significance: test-statistic: tail of distribution: c. Decision Rule: Reject Ho if d. Computation e. Decision (Reject Ho or Failed to reject Ho) f. Conclusion
1. Two well-mixed tanks are hooked up so that water with 2 pounds of salt per gallon flows into the first tank, well - mixed water flows out of the second tank, water flows from the first tank to the second tank, and water flows from the second tank to the first tank. All flows are constant. Determine how much water is in each of the two tanks, given if x is the amount of salt in the first tank and y is the amount of salt in the second tank then 3x = -x + y + 30 and 6y' 2x - 3y. The answer should be 45 gallons in the first tank and 30 gallons in the second tank. =

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