Download Math 140 – EDA Activity 2 Shape, Center, Spread and Typical

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Transcript
Math 140 – EDA Activity 2
Shape, Center, Spread and Typical Values
1. Open the men and women’s health data on the website www.matt-teachout.org . Look under the
“Data Sets” tab.
2. Look at the following columns of data for both men and women: age, height, weight, pulse and
body mass index. For each column, use Statcrunch to create a histogram and find the mean, median, ,
IQR, standard deviation, Q1 and Q3. Then answer the following questions. Save your graphs, sample
statistics and answers on a word document in your flash drive.
a) Look at the histogram and determine the shape of the data set?
(You do not need to save the graph.)
b) Based on the shape, which is the most accurate measure of center, the mean or median?
What is the average?
c) Based on the shape, which is the most accurate measure of typical spread, the
standard deviation or IQR?
d) Use the most accurate center and spread to find two numbers that typical values in the
data set will fall in between. (Use the mean + or – standard deviation if bell shaped. Use Q1
and Q3 if skewed.)