What is the mean, median and mode of this data? 12700, 15478, 12675, 11850, 13075

Answer:

Mean: 13155.6

Median: 12700

Mode: All of the numbers

Step-by-step explanation:

Mean: All you have to do is add up all of the numbers (65778), and then divide by the total number of data points (5).

Median: Arrange the numbers into numerical order and then just find the middle one. (if there is an even number of points then take the 2 middle numbers and add them, then divide by 2).

Mode: what ever number there is most of. (In this case all of the numbers are the mode because there is not one singular number that is shown more than the rest.

Mean: (12700+15478+12675+11850+13075)÷5

= 13156

Median: (12675+11850)÷2=12263

Mode: There is no mode

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

step-by-step explanation: