Assignment 2: EDA & Descriptive Statistics
Due at start of class on 18 January, 2006.


Each question is worth 1 point unless otherwise indicated.

Name:
Email Address:

Thirty-four people responded to the question "How many older brothers and sisters do you have?" Use the 34 responses given below to answer the questions in this assignment.

0
0
0
0
1
      0
0
0
2
2
      2
3
0
1
0
      0
0
0
1
3
      2
0
1
4
0
      0
1
0
0
2
      1
3
1
1
 

  1. Draw a frequency histogram of the data. (This cannot be submitted electronically. You will have to hand it in.)
  2. By just looking at the histogram is it
    1. positively skewed?
    2. not skewed?
    3. negatively skewed?
  3. Create a frequency distribution and a cumulative frequency distribution for the above data. (2 points)
  4. What is the mode of the data?
  5. What is the median of the data?
  6. What is the mean of the data?
  7. Which is the most appropriate measure of central tendency to use for this data?
    1. Mode
    2. Median
    3. Mean
  8. Justify you answer to the previous question (2 points):

When you are all done with the questions, click on the submit button. Your answers are not submitted unless you click on the button and you receive confirmation that your answers have been received.