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descriptive statistics

1) Over the past several months, customers at Stymie's department store have been asked to fill out customer satisfaction surveys. In the surveys, the customers rate their shopping experience on a scale of 0 to 100. Here are 25 recent ratings:
13, 16, 16, 21, 24, 33, 34, 37, 41, 45, 45, 49, 51, 56, 56, 56, 58, 61, 66, 70, 76, 79, 83, 84, 86.

A) For these data, which measures of central tendency take more than one value? Choose all that apply.
1. Mean
2. Median
3. Mode
4. None of these measures
B) Suppose that the measurement 13 (the smallest measurement in the data set) were replaced by 4. Which measures of central tendency would be affected by the change? Choose all that apply.
1. Mean
2. Median
3. Mode
4. None of these measures
C) Suppose that, starting with the original data set, the smallest measurement were removed. Which measures of central tendency would be change from those of the original data set? Choose all that apply.
1. Mean
2. Median
3. Mode
4. None of these measures
D) Which of the following best describes the distribution of the original data? Choose only one.
1. Negatively skewed
2. Positively skewed
3. Roughly symmetrical

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Answers of multiple choice questions from basic statistics

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