# Exam 1 Study Guide: The Basics

1. Identify whether the situation described is a descriptive statistic or an inferential statistic. Four parts. Look at homework 1.
2. Identify the level of measurement described. Eight parts. Look at homework 2.
3. Determine whether or not the graph or chart is appropriate for the type of data described. For example, is a pie chart appropriate when more than one category can be selected? Is a histogram appropriate for two related numerical variables? Eight parts.
4. Interpret the graph. Four parts. Look at homework 3.
5. Interpret the graph. Three parts. Look at homework 3.
6. Create a graph from a small set of data.
7. Complete the data set so that it satisfies the given characteristics. You'll need to know the definitions of mean, median, and mode to do this. For example, if the mean is 20 and the first three numbers are 10, 12, and 45, what is the fourth number? Three parts.
8. A mean and standard deviation are given. Label a bell curve to demonstrate the 68-95-99.7 rule.
9. Look at a histogram where the bars are one standard deviation wide. Determine the percent of the data that lies within one, two, and three standard deviations of the mean and whether or not 68-95-99.7 rule applies. Chebyshev's Rule is stated, see if your data follows that rule. Look at questions 3 and 4 on classroom activity 1.
10. The mean, median, range, standard deviation, and variance for a dataset are given. Determine what those statistics will be after the indicated transformation is applied. Five translations. Look at homework 5.
11. Given a small set of data values, find the mean, median, mode, midrange, range, variation, variance, and standard deviation. Look at homework 4 question 1, and classroom activity 2.
12. Find the measures of spread using the shortcut formula for variation. The sum of the values and the sum of the squares of the values are given. Look at homework 4 question 2.
13. A set of data is given. Find the five number summary for the data and use it to draw a box plot. Find the range and interquartile range. Use the given instructions to see what values are normal and which ones are unusual.

## Notes

• You will need a calculator.
• You will not need the computer during the test. The computers will be off during the test.

## Points per problem

 # Pts 1 2 3 4 5 6 7 8 9 10 11 12 13 Total 4 8 8 4 3 6 8 5 5 20 14 6 9 100