Why do we calculate the "range" of the measurments?

to get an ballpark idea of how much "error" is in the "average" measurement

to set upper and lower error limits on the y-value of each x-y data pair

to show if a straight "trend line" represents the experimental data

all of the above

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?