Instruction 12-3
the Director of Cooperative Education at a University $$\begin{array} { c c c } \text { Student } & \text { CoopJobs } & \text { JobOffer } \\1 & 1 & 4 \\2 & 2 & 6 \\3 & 1 & 3 \\4 & 0 & 1\end{array}$$

Instruction 12-3
The director of cooperative education at a university wants to examine the effect of cooperative education job experience on marketability in the workplace.She takes a random sample of four students.For these four,she finds out how many times each had a cooperative education job and how many job offers they received upon graduation.These data are presented in the table below.
$$\begin{array} { c c c } \text { Student } & \text { CoopJobs } & \text { JobOffer } \\1 & 1 & 4 \\2 & 2 & 6 \\3 & 1 & 3 \\4 & 0 & 1\end{array}$$
-Referring to Instruction 12-3,the least squares estimate of the Y-intercept is ________.