Students Per Computer - In the early years of microcomputers, school districts could not afford to buy a computer for every student. As the price of computers decreased, more and more school districts have been able to arraign this goal. The following table lists numbers of students per computer during these early years.
Year 1983 1985 1987 1989
Stud/Comp 125 50 32 22
Year 1991 1993 1995 1997
Stud/Comp 18 14 10 6
A)Make a scatterplot of the data. Would a straight line model the data accurately? Explain.
B) Discuss how well the formula
S=125/1+0.7(y-1983), y≥1983
models these data, where S represents the students per computer and y represents the year.
C) In what year does the formula reveal that there were about 17 students per computer?
Year 1983 1985 1987 1989
Stud/Comp 125 50 32 22
Year 1991 1993 1995 1997
Stud/Comp 18 14 10 6
A)Make a scatterplot of the data. Would a straight line model the data accurately? Explain.
B) Discuss how well the formula
S=125/1+0.7(y-1983), y≥1983
models these data, where S represents the students per computer and y represents the year.
C) In what year does the formula reveal that there were about 17 students per computer?