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Statistics: Frequency and Degrees of freedom

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Question a: A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage. A randomly selected sample of 100 property owners was contacted and the results are shown below.

What is the expected frequency for people who are in favor of the project and have less than 45 feet of property foot-frontage? Choose the right answer:

a. 10
b. 12
c. 35
d. 50

Question b: A sample of 100 production workers is obtained. The workers are classified by gender (male, female) and by age (under 20, 20-29, 30-39 and 40 or over). How many degrees of freedom are there?

Choose the right answer:
a. 0
b. 3
c. 6
d. 5

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The frequency and degrees of freedom are examined.

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Question a: A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage. A randomly selected sample of 100 property owners was ...

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