The sign on the shoe store door said: "Ninety-nine percent of our clients are satisfied customers!" They based this on the comment cards left by customers. What could have happened to make this sample biased? a. The store clerks only gave comment cards to customers who were smiling when they left the store.
b. Not enough comment cards were returned.
c. The cards were only given to people who bought two pairs of shoes.
d. Not enough comment cards were given out.

1. all other things equal, according to the law of demand, when the price of a good falls, the demand for the good falls the demand for the good rises the quantity demanded of the good falls the quantity demanded of the good rises 2. when a market is in equilibrium, the quantity of the good that buyers are willing and able to buy exactly equals the quantity that sellers are willing and able to sell cannot be determined is less than the quantity that sellers are willing and able to sell is greater than the quantity that sellers are willing and able to sell 3. which of the following factors does not influence the demand for a good or service? consumer (buyer) income the price of related goods the number of sellers buyer expectations 4. when the number of sellers in a market increases, demand rises supply rises the price rises, all else equal the number of buyers falls

Describe three scenarios in which you might utilize mathematics to investigate a crime scene, accident scene, or to make decisions involving police practice. be sure to explain how math is used in police as they work through each scenario.

What is the cause of smoky exhaust?