Everything else held constant, a decline in interest rates will cause spending on housing to

Prices of commercial airline tickets (assume that this is a normal good) have fallen in recent months. Over this same period, the price of jet fuel has risen and consumer incomes have fallen

Which of the following best explains the falling prices of airline tickets? A) The supply curve for airline tickets has shifted to the left while the demand curve for airline tickets has shifted to the right. B) The demand curve for airline tickets has shifted to the left more than the supply curve has shifted to the left. C) The supply curve for airline tickets has shifted to the left more than the demand curve has shifted to the left. D) The demand curve and the supply curve for airline tickets have both shifted to the right.

If there are 10,000 people in your age bracket, and 10 of them died last year, an insurance company believes that the probability of someone in that age bracket dying this year would be

A) 0. B) .001. C) .0001. D) 1,000.