The data gives the responses of 15 students who were asked how many text messages they send in a day.
(2, 50, 50, 51, 51, 52, 53, 54, 54, 55, 55, 55, 56, 56, 57}
what is the best measure of the central tendency of the data?

Initial population is 3450 in the year 2000 and it decreases 80 every year.

Step-by-step explanation:

We are given with y=-80x+3450 where y is city's population and x is the number of years after 2000.

That is x=0 means the year 2000.

Hence y-intercept will represent the initial population which is nothing but 3450.

Since our equation slope =-80 which is negative means y is decreasing as x increases.

For x raises by 1, y decreases by 80.

That means population decreases by 80 for every year.