If I mark all answers 'C' in an MCQ (Multiple Choice Questions) exam, what is the probability of passing the exam?
This question touches on the over-all strategy of “testmanship,” which applies a generic answer strategy in addition to whatever knowledge of the subject matter you actually have.This assumes the MCQ you face is relevant to some course of study you are involved with, or some area of knowledge with which you have a working familiarity -but no special expertise.Here’s the over-all approach:Before you start answering, scan the whole test to get an indication of the questioning strategy. Do not assume you must answer the questions in order -unless that’s a test condition.Go ahead and answer the questions where you have a good degree of confidence that you know the answer. Those are your “gimmies.” Let us say that this gives you 25% of the test.Now scan the questions for choices which you know or strongly suspect to be wrong. The more questions with wrong answers, the better, because your actual odds of a correct answer will be between the “possible” answers. If you’ve narrowed it down to two, then your odds on a sheer guess or coin flip are 50–50. Let us suppose that such questions account for half of the test. If so, you pick up another 25% or thereabouts. But don’t guess randomly -make an effort to determine which choice is more probably correct. That give you a slight edge.That leaves 25% of the test which have few or no known wrong answers. In a 4 choice test, your odds on a guess are 25%. Again, use what you DO know to get an edge.Watch out for answers such as “neither A nor D” or “Both C and B.” Hit the BOTH answers first, for any question where you have ruled out at least one answer.Be aware that the wording of some questions may give you a strong clue as to the answer to a subsequent question.Ignore suspicious patterns to answers, such as “all the answers are “B.”In general, apply the above instructions in the order they are given. The idea is to grab the low-hanging fruit first, then work your way up the “tree,” to more difficult material.This website: General knowledge quizzes has many MCQ’s in various areas where you may practice. In a general knowledge test I just took, I scored 9 out of 10 correct, using the strategies above. There were 2 questions which included known wrong answers, improving my odds on a “guess.” There were 2 on which I was completely clueless.Bottom line: some knowledge of subject matter is essential, but knowing how to take the test can be critical.Hope that helps.
Which is written in standard form? Multiple choice?
Which polynomial is written in standard form? A) x5y2 + 3x4y + 8x B) x3y2 + 3x4y + 8x2 C) x4y2 + 3x7y + 8x2 D) x3y2 + 3x5y + 8x THANKS :D
Write the expression in standard form. (multiple choice)?
7/4-14i I know you multiply it by the conjugate pair which s 4+14i but I'm stuck. I don't know where to go/what to do. I'm stuck. D: The choices are: -7/53+49/106i 7/53-49/106i 7/53+49/106i -7/53-49/106i An explanation/step by step as to how you did it would be great. Thanks so much!
What will be the answer if a multiple choice test consisting of 10 questions with four choices each, and the student guesses the answer to each question? What is the probability that he gets 8 questions correctly?
For each question we have 4 choices. So if you have 10 on such questions, you ll have :4*4*4*4*4*4*4*4*4*4= 4^10 = 2048Getting 8 correct means=> 8 corrects and two wrongs3/4 is the probability if a question is answered wrong1/4 is the probability if a question is answered correctlyso we can consider this probability :P=(3/4)*(3/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)=> P=0.00000858306But as we can select any combination of 2 from 10 for being wrong, so we need to multiply P by (10,2)=10!/(2!*8!) =45so the answer is P*45 = 0.00038623809So not very lucky to answer randomly!By the way, is it a question from your home work assignment? ;) ;)
How do I write a polynomial in standard form that represents the volume of the open box.?
The volume is just the three dimensional all multiplied together = x(4 - 3x)(8 - 3x) = x(32 - 12x - 24x + 9x^2) = x(32 - 36x + 9x^2) = 32x - 36x^2 + 9x^3 = 9x^3 - 36x^2 + 32x.
A multiple choice test has 20 questions each with five answers, only one of which is correct. What is the probability that a student could get full marks by guessing the correct answers at random?
As others have pointed, the probability is (1/5)^20, or 1 in 95,367,431,640,625, or roughly 1 in 100 trillion (10^14, or 1 followed by 14 zeros).To give some perspective into this huge number, here are two comparisons:- it's about a million times less likely than winning on a lottery where you have to get 6 numbers right out of 60 possible choices - it's about 100 times less likely than correctly predicting, at random, whether the stock market will go up or down in each of the following 40 yearsBetter to start studying for the test...
Write a polynomial function of minimum degree in standard form with real coefficients whose zeros include 1, 3?
f(x) = (x-3)(x-1) = x²-4x+3
Point slope form and standard form help?
write an equation of the line in point slope form that passes through the given points : (-2, 15) , (9,18) a) y-2 =-3(x-15) b) y-2 = -1/3 (x+15) c) y-15 =-3 (x+2) d) y-15 = -1/3 (x+2) What is an equation of the line in point slope form that passes through the given point and has the given slope .. point: (8,-8) ; slope; 3 A) y-8 =3(x+8) b) y+8=3(x+8) c) y-8=3(x-8) d) y+8=3(x-8) What is the equation of the given line in standard form? use integer coefficients Y= -1.7x+8.5 a) 17x+10y=85 b) -17x+10y=85 c) -17x+10y= -85 d) 17x+10y= -85 Please help! Thank you