Exam 1 Study Guide: The Basics
- Identify whether the situation described is a descriptive statistic or an inferential statistic. Four parts. Look at homework 1.
- Identify the level of measurement described. Eight parts. Look at homework 2.
- 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.
- Interpret the graph. Four parts. Look at homework 3.
- Interpret the graph. Three parts. Look at homework 3.
- 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.
- Create a graph. You should know how to create pie charts, bar charts, histograms, box plots, and stem and leaf plots.
- A mean and standard deviation are given. Label a bell curve to demonstrate the 68-95-99.7 rule.
- A set of data is given. Find the five number summary for the data.
- 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.
- 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.
- 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.
- Find the measures of spread using the shortcut formula for variation. The number of values, the sum of the values, and the sum of the squares of the values are given. Look at homework 4 question 2.
Notes
- You will need a calculator.
- No formulas are provided on the test. Memorize anything you need to answer the questions.
- You will not need the computer during the test. The computers will be off during the test.
Points per problem
| # |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
Total |
| Pts |
4 |
8 |
8 |
8 |
6 |
6 |
5 |
5 |
5 |
8 |
15 |
16 |
6 |
100 |