EXAMPLE 5 Elements, variables, and observations

Video Game Sales

Table 3 contains the top 30 best-selling video games in the United States for the week of May 17, 2014, along with the game platform, publishing studio, type of game, sales that week, total sales, and how many weeks the game has been on the list. Use Table 3 to answer the following questions.

  1. What are the variables?
  2. State the first five elements.
  3. List all the values that the variable platform takes.
  4. Provide the observation for Titanfall for Xbox One.

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Table 1.3: Table 3 Top 30 best-selling video games in the United States for the week of May 17, 2014
Game Platform Studio Type Sales for
week		 Sales total Weeks
on list
Minecraft for PS3 PS3 Sony Adventure 36,732 36,732 1
Minecraft for Xbox 360 Xbox 360 MS Adventure 33,887 2,517,732 50
Kirby: Triple Deluxe for 3DS 3DS Nintendo Platform 28,184 116,658 3
MLB 14 The Show for PS4 PS4 Sony Sports 27,088 161,770 2
Titanfall for Xbox One Xbox One Electronic Arts Shooter 23,244 1,150,856 10
Call of Duty: Ghosts for Xbox 360 Xbox 360 Activision Shooter 15,781 5,243,214 28
Bound by Flame for PS4 PS4 Focus Action 15,346 15,346 2
Pokemon X/Y for 3DS 3DS Nintendo Role-Playing 14,543 3,442,714 32
Titanfall for Xbox 360 Xbox 360 Electronic Arts Shooter 13,692 460,934 6
Grand Theft Auto V for Xbox 360 Xbox 360 Take-Two Action 11,652 7,417,036 35
Grand Theft Auto V for PS3 PS3 Take-Two Action 9,861 5,424,163 35
Call of Duty: Ghosts for PS4 PS4 Activision Shooter 8,917 1,100,682 27
Super Luigi U for Wii U Wii U Nintendo Platform 8,599 840,698 38
Super Mario Bros. U for Wii U Wii U Nintendo Action 8,476 1,690,689 78
Call of Duty: Ghosts for PS3 PS3 Activision Shooter 8,323 3,046,580 28
Borderlands 2 for PSV PSV Take-Two Shooter 8,189 50,568 2
Battlefield 4 for Xbox 360 Xbox 360 Electronic Arts Shooter 8,188 1,707,310 29
Forza Motorsport 5 for Xbox One Xbox One MS Racing 7,910 736,743 26
Call of Duty: Ghosts for Xbox One Xbox One Activision Shooter 7,777 1,139,310 26
inFamous: Second Son for PS4 PS4 Sony Action 7,150 634,733 9
Battlefield 4 for PS3 PS3 Electronic Arts Shooter 6,774 911,687 29
NBA 2K14 for Xbox 360 Xbox 360 Take-Two Sports 6,593 1,597,734 33
Spiderman 2 for PS4 PS4 Activision Action 6,510 49,292 3
Super Mario 3D World for Wii U Wii U Nintendo Platform 6,064 835,941 26
Yoshi's New Island for 3DS 3DS Nintendo Action 6,006 172,680 10
Battlefield 4 for PS4 PS4 Electronic Arts Shooter 5,875 786,607 27
Mario Golf for 3DS 3DS Nintendo Action 5,633 42,199 3
Nintendo Land for Wii U Wii U Nintendo Action 5,428 1,550,278 78
Mario Kart 7 for 3DS 3DS Nintendo Racing 5,353 3,394,162 128
NBA 2K14 for PS4 PS4 Take-Two Sports 5,290 608,899 27

videogamesales

Solution

  1. The variables are the game platform, publishing studio, type of game, sales that week, total sales, and how many weeks the game has been on the list.
  2. The first five elements are Minecraft for PS3, Minecraft for Xbox 360, Kirby: Triple Deluxe for 3DS, MLB 14 The Show for PS4, and Titanfall for Xbox One.
  3. The variable platform takes the following values: PS3, Xbox 360, 3DS, PS4, Xbox One, Wii U, and PSV.
  4. The observation for Titanfall for Xbox One is as follows:

NOW YOU CAN DO

Exercises 11–13, 17–19, and 23–25

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Game Platform Studio Type Sales
for week		 Sales total Weeks
on list
Titanfall for Xbox One Xbox One Electronic Arts Shooter 23,244 1,150,856 10