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 undecided about the project and have property front-footage between 45 and 120 feet?
Definitions:
Rubbing Alcohol
A type of denatured alcohol used for disinfection and as a topical antiseptic.
Primary
This term describes a functional group or atom connected directly to one other carbon atom, typical in the classification of alcohols and amines.
Secondary
In chemistry, indicates molecules or functional groups that are attached to a secondary carbon atom, which itself is connected to two other carbon atoms.
Tertiary
Referring to an organic molecule or an ion that has a carbon atom connected to three other carbon atoms.
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