Planmaking:statistics based Flashcards
This type of survey gathers information about a population at a single point in time.
cross-sectional survey
This type of survey are taken over a period of time.
longitudinal surveys
This type of survey can be mailed, printed in a newspaper, or administered in a group setting.
Very popular when a planner is trying to obtain information from a broad audience, such as general opinions about the community.
Low-cost survey method with low response rate, averaging around 20 percent.
written surveys
What are five characteristics of phone surveys
a. This type of survey is useful when you need yes/no answers.
b. Allows the interviewer to follow up and gain further explanation on answers
c. Can be expensive
d. Can be biased due to interaction with interviewer
e. Long questions with multiple answers don’t work well with this method.
What scale does the US geological survey use?
1:24,000 scale
What does 1:24,000 represent?
1 inch represents 2,000 linear feet
What does 1:62,500 represent?
1 inch represents .98 miles
what does 1: 500,000 represent?
1 inch equals 7.89 miles
what does 1:2,000,000 represent?
1 inch equals 31.57 miles
How many inches are in a foot?
12 inches
How many feet are in a mile?
5280
what type of statistics describe the characteristics of a population?
descriptive statistics
what type of statistics determine characteristics of a population based on observations made on a sample from that population? We infer things about the population based on what is observed in the sample
inferential statistics
What is the average of a distribution?
mean
What is the middle number of a ranked distribution?
median
Race, social security, and sex are examples of what kind of data?
nominal data( classified into mutually exclusive groups that lack intrinsic order)