MATH 221 Week 1 Homework

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Institution	MATH 221 Statistics for Decision-Making
Contributor	Rizelle

Description

Question: The age of every fourth person entering a department store. The selected individuals would be considered a:
Question: The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would be considered an example of:
Question: The milligrams of tar in 30 cigarettes would be considered:
Question: Marriage status (married, single, etc.) of the faculty at a university would be considered:
Question: Sixteen students are randomly selected from each grade level at a high school and asked about their eating habits. This sampling technique is called:
Question: A researcher obtained a random sample of 100 smokers and a random sample of 100 non-smokers. After interviewing all 200 participants, the researcher compared the rates of depression between the two groups. This study design would be considered:
Question: Which of the following would be the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
Question: Which of the following would be the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 13, 9
Question: What is the relationship between variance and standard deviation?
Question: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would be between 15.6 and 32.4 and why?
Question: Which data outcome of the speed of cars would best support installing a speed bump?
Question: In manufacturing, convenience sampling could be used to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
Question: A graph shows a number line with a mark for each data value in the data set above its value. This graphic is most likely to be:
Question: Match the terms and their definitions
Question: Match the terms and their definitions