2: Descriptive Statistics
Students summarize data using frequency tables and proportions, calculate mean, median, variance, and standard deviation, and determine percentile ranks from sorted data.
Measures of Center from Definitions
Click to show Measures of Center from Definitions example problem
Match each of the following measures of center with their corresponding definitions.
Note: Each choice will be used exactly once.
| Your Choice | Prompt | |
|---|---|---|
| 1. Midrange | ||
| 2. Mean | ||
| 3. Median | ||
| 4. Mode |
Drag one of the choices below:
- A. The value that appears with the greatest frequency in the set.
- B. The central measure found by summing all values and dividing by the total number of values.
- C. The middle value of an arranged set, splitting the data into two equal halves.
- D. The value obtained by adding the maximum and minimum values in the set, then dividing the result by two.
Measures of Center from Definitions
Click to show Measures of Center from Definitions example problem
Which one of the following measures of center correspond to the definition 'The middle value of an arranged set, splitting the data into two equal halves.'.
Descriptive Statistics Using Google Sheets
Click to show Descriptive Statistics Using Google Sheets example problem
Purpose: This assignment will help you practice making your own copy of a Google Sheet template and using with for statistical calculations. Throughout this course, we will use Google Sheets regularly. Take some time to look at the formulas in the sheet and notice how they work.
Follow these steps carefully:
(1) Open the Google Sheet Template: Google Sheet Template
(2) Go to File → Make a copy to create your own version.
(3) Enter the following numbers into the Raw Data column:
75
30
80
36
27
49
84
69
75
35
(4) Once the data is entered, look at the Descriptive Statistics column and enter the following values here:
- Mean
- Median
- Mode
- Range
Important: Report each answer as a whole number only (no decimals).