Chapter 4 Homework-Katina Perkirs nt: Katrina Perkins Instructor: Gina Mrozek Co

Question

Chapter 4 Homework-Katina Perkirs nt: Katrina Perkins Instructor: Gina Mrozek Course: Math 126-102 Date: 02/12/18 Assignment: Chapter 4 Homework Both figures below parts a through b below. 1. concern the assessed value of land that includes homes, and both use the same dataset. Complete the a. Which do you think has a stronger relationship with value of the land-the number of acres of land or the number of rooms in the homes? Why? O A. The number of rooms in the homes has a stronger rolationship with the vakue of the land, as OB. The number of acres of land has a stronger relationship with the value of the land, as shown C· OD. shown by the fact that the points are less scattered in a vertical direcion. by the fact that the points are less scatered in a vertical direction. The number of rooms in the homes has a stronger relationship with the value of shown by the fact that the points are more scattered in a vertical direction. Trenumber of acres of land has a stronger relationshp with the value of the land, as shown by the fact that the points are more scattered in a vertical direction, you were trying to predict the value of a parcel of land in this area (on which there is a home), would you be able to make a better prediction by knowing the acreage or the number of rooms in the house? Explain. Choose he correct answer below A. The number of rooms because the association is stronger between the value of land and the number of rooms than with the acreage because the vertical spread is less with the number of rooms because the vertical spread is less. the value of land and he number of rooms O B. The acreage because the association is stronger between te value of land and acreage than C. Neither because the associaion is the same between the value of land and the The scatterplot shows the actual weight and desired woight change of some students. Thus, if they weighed 220 and wanted to weigh 100, he desired weight change would: 2 ··· . be negative 30. Explain what you see. In particular, what does it mean that the trend is 1-w negative? : .r Choose the correct answer below. OA. The more people weigh, the more weight they tend to want to lose. O B. The less people weigh, the more weight they tend to want to lose. OC. The more people weighthe less weight they tend to want to lose. 1/21

Explanation / Answer

1.a. Option B. The number of acres of land has a stronger relationship with the value of the land, as shown by the fact that the points are less scattered in the vertical direction.

1.b. Option B. The acerage because the association is stronger between the value of land and acerage than with the number of rooms because the vertical spread is less.

2. Option A. The more people weigh, the more weight they tend to want to lose.

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