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# The following data represent the number of times that

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5. The following data represent the number of times that a sample of residents in nursing homes who were aged 80 or older fell during a 12 month period. 3 3 4 1 0 2 0 1 2 0 4 0 0 3 2 6 0 0 0 1 0 2 1 0 1 1 3 2 1 0 1 3 1 1 0 4 6 7 0 1 Construct a frequency distribution for this set of data, showing the absolute frequencies, relative frequencies, and cumulative relative frequencies. Frequency table results for Falls: Count = 40 Falls Frequency Relative Frequency Cumulative Relative Frequency 0 13 0.325 0.325 1 11 0.275 0.6 2 5 0.125 0.725 3 5 0.125 0.85 4 3 0.075 0.925 6 2 0.05 0.975 7 1 0.025 1 6. Using information from the frequency distribution in Exercise 5, answer the following: a. What percentage of the nursing home residents had at least 1 fall? 67.5% b. What number of falls was the most frequent in this sample? 0 c. What number of falls was least frequent in this sample? 5 d. What percentage of residents had 2 or fewer falls? 72.5% e. What is the total size of the sample? 40 f. Are there any outliers in this data set? no 7. Would it be advantageous to group the data in Exercise 5 before constructing a frequency distribution? Why or why not? No, grouping is only needed when there is more than 10 values. 8. Draw a graphic of the frequency distribution of the data in Exercise 5 using StatCrunch. Copy and Paste your graphic from StatCrunch into your Word document submission. Describe the shape of the frequency distribution in terms of modality and skewness. Is the number of falls normally distributed?

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Unimodal, positively skewed, the number of falls are not normally distributed. 9. The following set of numbers represent the scores of 30 psychiatric inpatients on a widely used measure of depression. What are the mean, median, and mode for these data? 41 27 32 24 21 28 22 25 35 27 31 40 23 27 29 33 42 30 26 30 27 39 26 34 28 38 29 36 24 37 If the values of the mean, median, and mode are not the same, discuss what this suggests about the shape of the distribution. Construct a Graphic of the distribution of this data using StatCrunch to prove your point. Copy and Paste your graphic from StatCrunch into your Word document submission.
• Spring '17
• Velado
• stats, systolic blood pressure, Word document submission

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