Suppose you have a sample {?1, ...,? }. if you were to use the population variance of this sample as an estimator for the true population variance, what would its bias be?

Americans consume about 13,150,000,000 gallons of carbonated drinks each year. Express this number in scientific notation.

uppose the sales tax rate in a certain state is 8% of the purchase price. If a new food processor sells for $750, how much is the sales tax?

Angie needs 108 inches of ribbon for the hem of her dancing dress. How many yards of ribbon does she need?

Walkway Over the Hudson, a bridge that crosses the Hudson River in Poughkeepsie, is 2.063 kilometers long. Anping Bridge, which was built in China 850 years ago, is 2.07 kilometers long.

A line is drawn through (-4, 3) and (4, 3). Which describes whether or not the line represents a direct variation? O The line represents a direct variation because O The line represents a direct variation because it is horizontal.

A local music store sells a popular brand of guitar. In one month, they sold 213 units for a total profit of $13,951.50. If the shop sells 254 units the next month, what will be the total profit? A. $15,240 B. $16,510 C. $16,637 D. $17,780

James is 19 years old. He is three years older than twice his sister's age. How old is James' sister?

Is 145 oz equal to 9 lbs

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 11 feet cubed. A sphere with height h and radius r. A cylinder with height h and radius r. Which equation gives the volume of the sphere?

Sonia has 28 stickers on 4 pages oh her notebook. She writes that 28 is7 times as many as 4. which other comparison sentence can she write in her notebook to show the comparison