Four students measure the mass of a standard mass that has an accepted value of 150.0 g. they post their results in a table.

which statements about the data are true? check all that apply.

rosa and tran have the most accurate data.
tran’s value is more precise than rahul’s.
lea’s and rosa’s data have the same degree of precision.
tran has the only accurate result.
rahul’s value is more accurate but less precise than lea’s.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?