Otworze 18/60
If xy = 2, yz = -3 and zx = - 6 find the value of x + y + z.
Or
6
0
5

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.

i believe that the answer is

b. y-1=-2(x-4)

hope this !

it is a secret for it not to be compromised sorry

step-by-step explanation:

47

step-by-step explanation: