Problema Solution
Discuss how well the formula models the data, where S represents the students per computer and y represents the year.
year 1983 students 125
year 1985 students 50
year 1987 students 32
year 1989 students 22
use use formula S=125/1+.07(y-1983),y>1983
Answer provided by our tutors
the formula models the data well for 1983, because if you plug zero into the equation for y you would get S = 125/1 = 125, which is the same as the data
for 1985, 1987, and 1989, the formula gives numbers that are way off & therefore does not model the data well
for 1985, plug in 2 for y and you get S = 125/1.14 = approx. 110, which is way far off from 50
for 1987, plug in 4 for y and you get S = 125/1.28 = approx. 98, which is way far off from 32
for 1989, plug in 6 for y and you get S = 125/1.42 = approx. 88, which is way far off from 50