Question: On a multiple choice test, there are 8 questions worth 12.5 points each. There are four choices for each question (a,b,c,d). Robin has not studied

On a multiple choice test, there are 8 questions worth 12.5 points each. There are four choices for each question (a,b,c,d). Robin has not studied for the quiz and decides to randomly guess on all of the questions.

1. The probability that Robin will answer fewer than 3 questions correctly.

2. The expected value and variance for the number of points that Robin will score on the exam.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!