HELP PLEASE Which statement about population parameters and point estimates is false?
A. O is the population standard deviation. It is usually unknown.
B. X is the sample mean. It is used to estimate the population mean,
C. U is the sample standard deviation. It is the square root of the
variance
O D. n is the sample size. It is used to calculate the sample mean.

answer: d. $20

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just took the test

answer: y = -2.5x - 15

              (-6,0)

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answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

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