Which sample is biased? 1) interviews of random teenagers who attended a rock concert to find out which musician teens enjoy most 2) a poll randomly surveying half of the students in grade 7 to find out which seventh-grade teacher at the school is most liked 3) an online survey by a game development company taken after the game closes to find out which features of a new game players liked the most 4) a questionnaire delivered to two employees from every department of an office to find out whether employees like the new coffee machine

Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.