4. The stem-and-leaf display Aa Aa Which of the following are true for stem-and-

Question

4. The stem-and-leaf display Aa Aa Which of the following are true for stem-and-leaf displays? Check all that apply A stem-and-leaf display gives you all the benefits of a histogram stem-and-leaf displays are not as useful as histograms because they show only the scores and not the frequencies A stem-and-leaf display shows not only the frequencies of the class intervals but also the scores You can completely regenerate the raw data from a stem-and-leaf display The following data on a quantitative variable named Variable A were collected from a sample of size n = 22 Data Set Sample Variables 1 Observations 22 Sample Data Sample Data Number Variable A 40 32 43 42 36 25 28 47 48 36 27 31 49 Variables 10 12 13 Variable Correlation Correlation 15 45 Variable A

Explanation / Answer

Here

steam and leaf plot gives us all the benifits of histogram because by using histogram we make inference about distribution of the data.

Now we want to plot steam and leaf plot varaiable A

we perform it using Minitab software

Graph <<< steam and leaf << select variable A << OK

we get

steam Leaf

2 5  7 8
3 1 2 2 5 5 6 6
4 0 2 2 3 3 4 5 5 6 7 8 9

Here the distribution in steam and leaf display is positively skewed

that option C is correct

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