Exam 1 Study Guide: The Basics
- Identify whether the situation described is a descriptive statistic or an inferential statistic. Five parts. Look at homework 1.
- Identify whether the variable is categorical or numerical. Five parts. Look at homework 1.
- Identify the level of measurement described. Ten parts. Look at homework 2.
- Interpret the dotplot. Six parts parts.
- Interpret the pie chart. Five parts. Look at homework 3.
- Given a small set of data, find the mean, median, and mode.
- Interpret the boxplot.
- Interpret a stem and leaf plot.
- 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.
- Interpret the frequency table. Look at homework 3.
- Various sums for a set of data are given. Find the mean, variation, variance, and standard deviation. Look at homework 4.
- Various sums for a set of data are given. Find the mean, variation, variance, and standard deviation. Look at homework 4.
- Look at a histogram where the bars are one standard deviation wide. Answer the questions based on the graph. 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.
- Look at two graphs and compare on the center and spread of the data in each.
- Given two paired sets of numbers, find the sum of the squares of the deviations from the mean. The sums of the values and the sum of the squares of the values are given, find the mean, variation, variance, and standard deviation. Similar to classroom activity 2 and homework 4 question 2.
- 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. Six translations. Look at homework 5.
- Given a small set of data values, find the mean, median, mode, midrange,
range, quartiles, a percentile, interquartile range, variation, variance, and standard deviation. Look at homework 4, and classroom activity 2.
Notes
- You will need a calculator.
- No formulas are provided on the test. Memorize anything you need to answer the questions.
Points per problem
| # |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
Total |
| Pts |
5 |
5 |
10 |
12 |
10 |
6 |
9 |
10 |
7 |
12 |
6 |
6 |
9 |
3 |
13 |
15 |
12 |
150 |