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Mathematics 7 Online
OpenStudy (anonymous):

PLEASE ALGEBRA HELP?!?

OpenStudy (anonymous):

TV World sold 1200 television sets this year. 240 of the sets were sold with extended warranties. What is the proportion of sets sold with extended warranties? Write your answer as a decimal. If the decimal is less than 1, write a 0 before the decimal point. Enter your answer to 1 decimal place.

OpenStudy (anonymous):

do you know the proportion?

OpenStudy (anonymous):

The margin of error for the above proportion is give or take ________

OpenStudy (anonymous):

well i know the answer to the first question..... it was 0.2

OpenStudy (anonymous):

I just need to know the margin of error.

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