Your aunt is buying a new couch. the regular price of the couch is $799. the store sale price is 20 % off the regular price. your aunt uses a newspaper coupon for an additional 5 % off of any sale price item. for having an account with the store, she also gets an additional 10 % off her final price.

how does your aunt pay for the couch?

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.