7. Which scatter plot could have a trend line whose equation is y = x + 2? * 10 points1010-8-8.6.6-4-4.2-22 4 6 8 102 4 6 8 10А.В.106.4.O 2 4 6 8 10C.8.2.

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Answered: 7. Which scatter plot could have a…

7. Which scatter plot could have a trend line whose equation is y = x + 2? * 10 10 8. 6- 4- 2 4 6 8 1o O 2 4 6 8 10 OA. В. 10 8- 6. 2 4 6 8 1o c. 2. 004N 4. 2.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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24. When the connected points on a scatterplot make a perfect y=x line, what is its (correlation) r-value? Group of answer choices r = -1 r = 0 r = 1 r = 0.5
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15) Fine the sum of products (SP) and sum of squares (SS) for the variables of interest mentioned in the study above. Then find the correlation between the two variables of interest. (Round all answers to 2 decimal points) a) SP = b) SSbullying = c) SSprejudice = d) r =
I have this much done, but need help with E, i,ii,iii Which asks: Choose a year other than the one from part 2c. A birth year or the first year might be a good choice(I picked 1990) .i. Use the trend line equation to estimate the y-value for the year of your choice. Find the relative change in the y-value for your chosen year compared to the last year’s value you found in part 2c iii. Interpret the meaning of your relative change value. F.Should we use the trend line model to estimate the y-value for 2020? Why or why not? Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have helped you solve the first three parts, according to our policy. Please re-post the other parts with complete background information. Step 2 Calculation: As it is required to build a scatterplot with a trendline, we need to use Excel, where this feature is available. The independent or predictor variable is year, which we have denoted as x, and the dependent…
2. What does it mean for a scatter plot to have a negative trend? O A. Higher c-values tend to go with higher y-values. OB. Higher -values tend to go with lower y-values. OC. The x- and y-values appear to be unrelated. OD. None of these are true.
Interpret the intercept and the slope coefficient of the estimated linear trend line equation and comment on the fitness of the model.
8. Determine if the correlation between the two given variables is likely to be positive or negative, or if they are not likely to display a linear relationship. a) The average selling price of a model of car and the cost of a loaf of bread on a given day b) The number of crimes committed in an area and the selling price of homes in that area c) The number of pets owned by a family and the cost of their vet bills
1945 is paired with cancer rates for 1975. The cigarette consumption data is from 1945 to 1975 in 5-year increments. There is a strong positive linear association between annual cigarette consumption and lung cancer rates. The correlation is 0.81. If we use the line to make predictions of the number of lung cancer deaths per 100,000 people, which of the following is an example of extrapolation? a. Predict Y when cigarette consumption is 3,500 cigarettes per person. b. Predict Y when cigarette consumption is 3,800 cigarettes per person. c. Predict Y when cigarette consumption is 4,600 cigarettes per person.
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The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. xx 11.4 8.5 7.2 3.4 2.8 2.7 2.6 0.7 yy 13.6 11.3 10.4 7.2 6.4 6 6.5 4.9 xx = thousands of automatic weaponsyy = murders per 100,000 residentsThis data can be modeled by the equation y=0.83x+4.19.y=0.83x+4.19. Use this equation to answer the following;Special Note: I suggest you verify this equation by performing linear regression on your calculator.A) How many murders per 100,000 residents can be expected in a state with 4.1 thousand automatic weapons?Answer = Round to 3 decimal places.B) How many murders per 100,000 residents can be expected in a state with 4.2 thousand automatic weapons?Answer = Round to 3 decimal places.
A scatterplot with no linear trend will have an r value of zero true or false?