When does it help to look at the bar chart that summarizes the distributions with just one number each? When is it more helpful to look at the whole distributions with histograms?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit