Question:each question on a multiple-choice exam has five choices. One are
the choices is the correct...
Question
each question on a multiple-choice exam has five choices. One are
the choices is the correct...
each question on a multiple-choice exam has five choices. One are
the choices is the correct answer, worth 6 points, another choice
is wrong but still carries practical credit of 2 points, And the
other 3 choices are worth 0 points.
If the exam has 80 questions, what is who's or her expected
score?