Question

The table shows the population of a school for the years 1992-2008. Year: 1992, 1994 1996, 1998, 2000, 2002, 2004, 2006, 2008. Population: 628, 656, 692,751, 793, 840 ,868, 902, 940. Which of the following is the best prediction for the population in 2012? A. 1000 B. 1100 C. 1150 D. 2010

Answer 1

this answer was wrong and not 1100

Answer 2

(A) 1000

Explanation:

We will form a graph of the points give.

Let x denotes the year and y denotes the population in the corresponding year.

We get the best fir line as :

y =20.225x-39664

Now, to evaluate the population in 2012, we will put x=2012

y = 20.225(2012) - 39664

y = 1028.7

So the best prediction for the population in 2012 is 1000.

Hence, option (A) is correct.