What are the qualities of a good psychological test?
(At least three sentences please!)

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

Which of the following is one of the most common causes of collisions? a. driving on the wrong side of the road b. driving too slowly uphill c. tailgating d. eating while driving

You want free points & free brainliest? answer this question correctly and you shall receive! in which of the following places is it legal to park? a. in front of driveways b. by curbs with no markings c. by yellow painted curbs d. next to a fire hydrant