Mathematics, 28.10.2020 22:30 nev322
Ten people were chosen at random and surveyed. The survey asked participants for the number of hours they watched TV per day
and their ages Letting X represent the number of hours the participant watched TV per day and Y represent the participant's age,
the surveyor calculated the correlation coefficient between X and Y to be 0.21
Interpret the correlation coefficient calculated by choosing the statement below which correctly describes the association between X
and Y
Answers: 1
Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
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Mathematics, 22.06.2019 04:00
What is the answer to this problem? ignore the work. what is the correct answer?
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Ten people were chosen at random and surveyed. The survey asked participants for the number of hours...
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