Asurvey related to professor effectiveness was administered to students who chose the professor as the chair of their doctoral committee. the results of the survey showed 100% effectiveness. another survey was administered to all students taking courses under the professor. the results of this survey showed 70% effectiveness. this is a classic example of an error in which phase of inferential statistics?

28

step-by-step explanation:

8+8+6+6

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)