Question

1 .A multiple choice question has 5 options. Choosing the correct option earns the student 1 marks. However choosing the wrong option incurs negative marks so that if a student chooses an option randomly, his expected score is 0. Suppose a student has successfully eliminated 2 incorrect options. His expected score if he chooses randomly among the remaining options is.; 1 .A multiple choice question has 5 options. Choosing the correct option earns the student 1 marks. However choosing the wrong option incurs negative marks so that if a student chooses an option randomly, his expected score is 0. Suppose a student has successfully eliminated 2 incorrect options. His expected score if he chooses randomly among the remaining options is.

Answer 1

I GIVE YOU ONE EXAMPLE.

IF HE GIVE CORRECT ANSWER AND IT BEAR 4 MARKS AND IN SECOND CONDITION IF HE GIVE WRONG ANSWER THEN 1 MARK HE LEFT FROM HIS SCORE.