Question

# The total blood cholesterol level was measured for each of 21 adults. Here are the 21 measurements (in mg/dL). 126, 140, 154, 160, 170, 172, 176, 180, 180, 181, 184,

188, 190, 198, 199, 205, 212, 215, 222, 229, 239 (a) Which measures of central tendency do not exist for this data set? Choose all that apply. O Mean O Median O Mode O None of these measures (b) Suppose that the measurement 239 (the largest measurement in the data set) were replaced by 348. Which measures of central tendency would be affected by the change?Choose all that apply. O Mean O Median O Mode O None of these measures (c) Suppose that, starting with the original data set, the largest measurement were removed. Which measures of central tendency would be changed from those of the original data set? Choose all that apply. O Mean O Median O Mode O None of these measures (d) Which of the following best describes the distribution of the original data? Choose only one. O Negatively skewed O Positively skewed O Roughly symmetrical

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