1. Consider the data for glasses of water drank per day and answer the questions that follow.
a. Graph a histogram and frequency polygram of these data. Remember to label your axes and title the graphs.
b. Calculate a skewness statistic and the standard error of the skewness (either by hand or with a data analysis software program). What do the graphs and skewness statistic tell you about the distribution?
c. What are the best measures of central tendency and variability?
2. Consider the SPSS output about glasses of juice drank per week and answer the questions that follow.
a. What are the best measures of central tendency and variability? Explain why.
b. Write up the results.
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