(Solved): Consider the two distributions below. Which would most likely have a higher standard deviation? (a ...

Consider the two distributions below. Which would most likely have a higher standard deviation? (a) Age of students in a first grade classroom (b) Age of students in a college classroom (b) because students in a college classroom will have ages that vary more. (a) because students in a first grade classroom will have ages that vary less. (b) because students in a college classroom will have a higher average age. (a) because students in a first grade classroom will have a lower average age. QUESTION 4 To investigate possible effects of air pollution, researchers measured air quality in various locations in Germany and China. The data values vary from 0 (worst quality) to 100 (best quality). An Excel file including the sample data for both countries is attached below. Analyze the data set to determine whether each statement below is true or false. It is acceptable to use the Empirical Rule to describe the distribution of air quality for areas of China. a. Tru It is acceptable to use a Five Number Summary to describe the distribution of air quality for areas of b. Fals Germany. e The distribution of air quality for areas in Germany is skewed left. The distribution of air quality for areas in China is skewed right. Typically, areas of China have higher air quality than areas of Germany. For areas of Germany, the mean is higher than the median. The shape of the distribution for air quality in China suggests that it is equally common to observe high air quality as it is to observe low air quality. The air quality in China is less consistent than the air quality in Germany.