Label each of the following scenarios with the set of symbols that best indicates the price change and quantity change that occur in the scenario. In some scenarios, it may not be possible from the information given to determine the direction of a particular price change or a particular quantity change. We will symbolize those cases as, respectively, "P?" and "Q?". The four possible combinations of price and quantity changes are: LO3.5 P ↓ Q? P? Q ↓ P ↑ Q? P? Q ↑ a. On a hot day, both the demand for lemonade and the supply of lemonade increase.
b. On a cold day, both the demand for ice cream and the supply of ice cream decrease.
c. When Hawaii’s Mt. Kilauea erupts violently, the demand on the part of tourists for sightseeing flights increases but the supply of pilots willing to provide these dangerous flights decreases.
d. In a hot area of Arizona where they generate a lot of their electricity with wind turbines, the demand for electricity falls on windy days as people switch off their air conditioners and enjoy the breeze. But at the same time, the amount of electricity supplied increases as the wind turbines spin faster.

On a hot day, both the demand for lemonade and the supply of lemonade increase. - quantity increases

On a cold day, both the demand for ice cream and the supply of ice cream decrease. - Quantity decreases

When Hawaii’s Mt. Kilauea erupts violently, the demand on the part of tourists for sightseeing flights increases but the supply of pilots willing to provide these dangerous flights decreases. - Price increases

In a hot area of Arizona where they generate a lot of their electricity with wind turbines, the demand for electricity falls on windy days as people switch off their air conditioners and enjoy the breeze. But at the same time, the amount of electricity supplied increases as the wind turbines spin faster. - price decreases.

Explanation:

In Economics, price and quantity play a major role in determining about the growth of the economy. In most of the situations, price and quantity are in inverse relation with each other.

This means that with the increase in the quantity of the good supplied, the price of the good will fall and with the decrease in the quantity of the good supplied, the price of that good will increase and so on. They determine the growth, development and the production activities which are going on in an economy.

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.

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