Mathematics, 16.10.2020 06:01 averyrogerss560
A state energy agency mailed questionnaires on energy conservation to 1,000 homeowners in the state capital. Five hundred questionnaires were returned. Suppose an experiment consists of randomly selecting one of the returned questionnaires. Consider the events:
A: {The home is constructed of brick}
B: {The home is more than 30 years old}
C: {The home is heated with oil}
In terms of A, B, and C, describe a home that is constructed of brick and is less than or equal to 30 years old.
Answers: 3
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Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
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A state energy agency mailed questionnaires on energy conservation to 1,000 homeowners in the state...
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