Liberty
University MATH 201 Project 1 solutions answers right
Project 1 Instructions
Based
on Larson & Farber: section 2.1
Use the Project 1 Data Set to create the graphs and tables in
Questions 1–4 and to answer both parts of Question 5. If you cannot figure out
how to make the graphs and tables in Excel, you are welcome to draw them by
hand and then submit them as a scanned document or photo.
1. Open a blank Excel file and create a grouped frequency
distribution of the maximum daily temperatures for the 50 states for a 30 day
period. Use 8 classes. (8 points)
2. Add midpoint, relative frequency, and cumulative frequency columns
to your frequency distribution. (8
points)
3. Create a frequency histogram using Excel. You will probably need
to load the Data Analysis add-in within Excel. If you do not know how to create
a histogram in Excel, view the video located at: http://www.youtube.com/watch?v=_gQUcRwDiik. A simple bar graph will also work.
If
you cannot get the histogram or bar graph features to work, you may draw a
histogram by hand and then scan or take a photo (your phone can probably do
this) of your drawing and email it to your instructor. (8 points)
4.
Create a frequency polygon
in Excel (or by hand). For help, view http://www.youtube.com/watch?v=7Q-KdmDJirg
(8
points)
5. A. Do any of the temperatures appear to be unrealistic or in
error? If yes, which ones and why? (4
points)
B.
Explain how this affects your confidence in the validity of this data set. (4 points)
Project 1 is due by
11:59 p.m. (ET) on Monday of Module/Week 1.
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