Rangers tagged and released 300 salmon into a Maine lake. A month later, fishermen on the lake were surveyed. They reported

catching 80 salmon, 12 of which had tags. Using this sample,

estimate the salmon population in the lake.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.