Statistics

Statistics

Chapter 2 Practice Problems

Complete the following practice problems to test your understanding. Check your work with the solutions provided.

You are given the following data of patient weight in pounds from a clinical trial:

180, 181, 182, 155, 150, 151, 167, 178, 135, 189, 220, 179, 122, 169

Use this data set to answer the following questions:

1. Make a stem-and-leaf plot of the data.

2. What is the mean weight of the patients?

3. Does this data set have a mode? If so, what is the mode?

4. What is the range of the patient’s weight?

Answer key is found on page 80.

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