Organizing, Visualizing And Describing Data Organizing, Visualizing and Describing Data Quantitative Methods 1 / 15 In a frequency distribution, the width of each interval (class width) is an important consideration. What might be a consequence of choosing a very small class width? Loss of detail in the data Easier identification of outliers A more compact and readable histogram A higher level of data summarization 2 / 15 Which of the following measures is sensitive to outliers in a dataset? Mean Median Variance Range 3 / 15 What is the term for a graphical representation that displays the frequency distribution of a continuous variable? Scatter plot Histogram Bar chart Box plot 4 / 15 Which of the following best describes the purpose of a scatter plot? Displaying categorical data Showing the distribution of a single variable Demonstrating the relationship between two variables Representing the mean and median of a dataset 5 / 15 What does a stem-and-leaf plot display? The frequency distribution of data The relationship between two variables The measures of central tendency The spread and individual data values 6 / 15 A dot plot is most useful for which type of data? Categorical data Ordinal data Continuous data Time series data 7 / 15 In a frequency distribution, what does the cumulative frequency represent? The total number of observations The sum of all the frequencies up to a particular data point The number of data points in the middle of the distribution The range of the data 8 / 15 A histogram is a graphical representation of: Categorical data Discrete data Continuous data Ordinal data 9 / 15 Which of the following is not a measure of data dispersion? Standard Deviation Variance Median Range 10 / 15 Which of the following is a measure of dispersion? Mean Median Range Mode 11 / 15 The interquartile range (IQR) is a measure of: Variability in the data Central tendency Outliers in the data The mean of the data 12 / 15 In a box plot (box-and-whisker plot), what does the box represent? The range of data values The mean of the data The middle 50% of the data The maximum value in the dataset 13 / 15 Which type of data can be represented using a bar chart? Nominal Ordinal Interval Ratio 14 / 15 Which of the following is a measure of central tendency? Range Variance Median Standard Deviation 15 / 15 What is the first step in organizing and summarizing data? Calculating measures of central tendency Creating histograms Collecting the data Sorting the data Your score isThe average score is 0% 0% Restart quiz
