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This lab allows students to practice and demonstrate techniques used to generate systematic samples. Students will have the opportunity to create relative frequency tables and interpret results based on different data groupings.

Class Time:

Names:

Student learning outcomes

  • The student will demonstrate the systematic sampling technique.
  • The student will construct Relative Frequency Tables.
  • The student will interpret results and their differences from different data groupings.

Movie survey

Ask five classmates from a different class how many movies they saw last month at the theater. Do not include rented movies.

  1. Record the data
  2. In class, randomly pick one person. On the class list, mark that person's name. Move down four people's names on the class list. Mark that person's name. Continue doing this until you have marked 12 people's names. You may need to go back to the start of the list. For each marked name record below the five data values. You now have a total of 60 data values.
  3. For each name marked, record the data:
    ______ ______ ______ ______ ______ ______ ______ ______ ______ ______
    ______ ______ ______ ______ ______ ______ ______ ______ ______ ______
    ______ ______ ______ ______ ______ ______ ______ ______ ______ ______
    ______ ______ ______ ______ ______ ______ ______ ______ ______ ______
    ______ ______ ______ ______ ______ ______ ______ ______ ______ ______
    ______ ______ ______ ______ ______ ______ ______ ______ ______ ______

Order the data

Complete the two relative frequency tables below using your class data.

Frequency of number of movies viewed
Number of Movies Frequency Relative Frequency Cumulative Relative Frequency
0
1
2
3
4
5
6
7+
Frequency of number of movies viewed
Number of Movies Frequency Relative Frequency Cumulative Relative Frequency
0-1
2-3
4-5
6-7+
  1. Using the tables, find the percent of data that is at most 2. Which table did you use and why?
  2. Using the tables, find the percent of data that is at most 3. Which table did you use and why?
  3. Using the tables, find the percent of data that is more than 2. Which table did you use and why?
  4. Using the tables, find the percent of data that is more than 3. Which table did you use and why?

Discussion questions

  1. Is one of the tables above "more correct" than the other? Why or why not?
  2. In general, why would someone group the data in different ways? Are there any advantages to either way of grouping the data?
  3. Why did you switch between tables, if you did, when answering the question above?

Questions & Answers

the diagram of the digestive system
Assiatu Reply
How does twins formed
William Reply
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
what is genetics
Josephine Reply
Genetics is the study of heredity
Misack
how does twins formed?
Misack
What is manual
Hassan Reply
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
Joseph Reply
what is biology
Yousuf Reply
the study of living organisms and their interactions with one another and their environments
AI-Robot
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
what is the blood cells
Shaker Reply
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
Abdullahi Reply
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
What is classification
ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
cell is the building block of life.
Condoleezza Reply
what is cell divisoin?
Aron Reply
Diversity of living thing
ISCONT
what is cell division
Aron Reply
Cell division is the process by which a single cell divides into two or more daughter cells. It is a fundamental process in all living organisms and is essential for growth, development, and reproduction. Cell division can occur through either mitosis or meiosis.
AI-Robot
What is life?
Allison Reply
life is defined as any system capable of performing functions such as eating, metabolizing,excreting,breathing,moving,Growing,reproducing,and responding to external stimuli.
Mohamed
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Source:  OpenStax, Collaborative statistics for mt230. OpenStax CNX. Aug 18, 2011 Download for free at http://legacy.cnx.org/content/col11345/1.2
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