A TV station wants to conduct a survey to determine which sport should be shown on Sunday in the viewing area: a football game o
r a baseball game. Which of the following samples would be a fair representation of people to ask? A. Sample 1: 50 high school football players and 50 high school baseball players B. Sample 2: 50 boys and 50 girls at the local middle school C. Sample 3: 100 people who were preselected because they do not watch sports D. Sample 4: every 100 thperson at a local shopping mall
The number 0 is called the additive identity because when you add it to a number, the result you get is the same number. For example, 4 + 0 = 4. Any two numbers whose sum is zero, such as 3 and -3, because 3 + (-3) = 0.
