Study Guide Unit I

1. Given a table of data . Construct a frequency distribution with class limits, class boundaries, midpoints, relative frequency, cumulative frequency, and percent cumulative frequency:

From the table given in problem number 1, construct:

2. Relative frequency polygon
3. Relative frequency histogram
4. Percent cumulative frequency ogive

5. From given data, construct a box and whisker plot
6. From given data construct a stem and leaf plot
7. From given data construct a Pareto graph
8. From given data, calculate the median
9. From given data calculate the mean and standard deviation
10.Of the three measures of central tendency, which, if any are affected by extreme values?
11. Name the two types of statistics
12.Name the components of descriptive statistics
13.Name measurement scales.
14.Given several distributions. Discuss their shape with respect to skewness
15.Name two ways in which parameters are different from statistics.
16. Convert a raw score to a Z score
17. Convert a Z score to a raw score.
18. Find the percentile rank of a selected number
19. Discuss why the Standard deviation is preferred over variance.
20. Use Statcrunch for descriptive statistics and graphs.