Astore purchased a dvd for 12.00 and sold it to the customers for 50% more than the purchase price. the customer was charged a 7% tax when the dvd was sold. what was the customer's total cost for the dvd?
a.12.84
b.18.42
c.18.84
d.19.26

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.

da freeck kinda math is this just drop out

step-by-step explanation: