During the 2015 nascar races, the car completed 371.5 laps around the track. during the 2016 race, the racers completed 378.925 laps around the track. how many more laps were completed in 2016 than 2015 .show your work

7.425 laps.

Step-by-step explanation:

That would be 378.925 - 371.5

= 7.425 laps,

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.