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Agriculture Learning Outcome # 1
Agriculture Proponent
Agriculture Learning Outcome # 6
Problem Solver and Decision Maker
Math Learning Outcome # 6 Solving
Problems Involving the Collection, Display, and Analysis of Data
Activity Sheet # 1
Assignment: To become aware that current agricultural trends can be
determined through data management analysis.
Preparation:
Materials and Resources: Knill et als..1998. Mathpower 10 Western
Edition. McGraw-Hill Ryerson: Toronto, Canada, Section 8.1. pp.
364-369.
Prince Edward
Island Department of Agriculture and Forestry. 1999. 1998 Agricultural
Statistics, vol. 32. Charlottetown, P.E.I..
Web Site for 1998 Agricultural Statistics : 1. Go to www.gov.pe.ca/
2. Click on "statistical"
3. Search for "Agricultural Statistics"
4. Click on "Prince Edward Island Agricultural
Statistics"
http://www2.gov.pe.ca/af/agweb/numbers/stats98/index.asp
Suggested Activities:
Each year sampling techniques are used by Statistics Canada in cooperation
with the Department of Agriculture and Forestry to compile a book of
Agricultural data. Information is compiled in the following categories:
Census Statistics
Farm Income Statistics
Livestock Statistics
Dairy Statistics
Poultry Statistics
Other Livestock Products
Field Crop Statistics
Fruit and Vegetable Statistics
Other Statistics
To follow is a sample problem set which can be distributed to the students.
Census Statistics
1. Farms Classified by Size of Farms (Table
1)
a) In 1981, the majority of farms were of what acreage? In 1986? In 1991?
In 1996?
b) Has there been any trends in farm size on P.E.I. since 1981?
c) How could these trends be best explained?
d) What groups of people might be interested in the results of this type of
survey?
e) Design a probability sampling technique that could be appropriate to
this study.
2. Farms Classified by Gross Receipts (Table 1)
a) In 1981, the majority of farms were of what income? In 1986?, In 1991?
In 1996?
b) Has there been any trends in farm incomes on P.E.I. since 1981? Is this
trend real?
c) How could these trends best be explained?
d) What groups of people might be interested in the results of this type of
survey?
e) Design a sampling technique that would be appropriate to this study.
3. Population (Table 1)
a) What percentage of the P.E.I. population is farm population, in 1981? In
1986? In 1991?
b) What implications does this have for the P.E.I. Agriculture industry?
Field Crop Statistics
4. P.E.I. Certified Seed Potato Movements for the P.E.I. Agriculture Industry
(Table 34)
a) From this chart, what regulatory body is responsible for the recording
of seed potato exports?
b) Overall from 1990-1998, which group accounts for the largest seed potato
exports; international exports or exports to other parts of Canada?
c) In 1997-1998, of all the international exports, name the top three
countries that seed potatoes were exported to. In 1990-1991, were these the
biggest countries of export? Why do you think there was a change, if any?
d) In 1997-1998, of all the exports to other parts of Canada, name the top
two provinces seed potatoes were exported. In 1990-1991, were these the
biggest countries of export? Why do you think there was a change, if any?
e) Design a sampling technique that would be appropriate to this study.
Appendix A
Sampling Techniques
Sampling techniques - is the procedure used for collecting information
from the sample.
Sampling techniques are divided into two categories:
1) Probability Sampling
a) Simple Random Sampling
b) Systematic Sampling
c) Stratified Sampling
Probability sampling involves the random selection of units from a
population.
2) Non-probability Sampling
a) Convenience Sampling
b) Sampling of Volunteers
Non-probability sampling generally gives less reliable results than
probability sampling techniques. However, this type of sampling is cheap and
convenient.
Sampling techniques were developed because there was a real need for data to
be collected reliably. Reliable data helps eliminate bias. Bias is
the difference between the results obtained by sampling and the truth about the
whole population.
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