SOLUTION: Hello, I'm Alex. Could I please ask your assistance on this Homeschool American School Problems because I don't have a teacher here to help? Suppose there are 10 items on a tru

Question 63652This question is from textbook Algebra and Trigonometry Structure and Method
: Hello, I'm Alex. Could I please ask your assistance on this Homeschool American School Problems because I don't have a teacher here to help?
Suppose there are 10 items on a true-false test. The person taking the test does not read the questions; he just answers them randomly. What is the probability of his guessing all answers correctly?
This question is from textbook Algebra and Trigonometry Structure and Method

Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
Hi Alex,
Suppose there are 10 items on a true-false test. The person taking the test does not read the questions; he just answers them randomly. What is the probability of his guessing all answers correctly?
There is a 1/2 chance of getting each one right:
(1/2)(1/2)(1/2)(1/2)(1/2)(1/2)(1/2)(1/2)(1/2)(1/2)
(1/2)^10=1/1024
If you need it in decimal form: .0009765625
Happy Calculating!!!

RELATED QUESTIONS
Hello, I'm Alex. Could I please ask your assistance on these two Homeschool American... (answered by venugopalramana)

What should be the value of k in 2x^4-5x^2+k so that x-5 is a zero? I kinda don't know (answered by josgarithmetic,Theo,ikleyn)

I'm really sorry, I don't study maths in English so I really have no idea where to put... (answered by CubeyThePenguin,ikleyn)

My question is on solving word problems. Wilson High School has 400 students, 20% of... (answered by josmiceli)

Hi my name is Amanda and my mother decided to homeschool me this year is there anyway I... (answered by elima)

Hello, I could not find anything on the site that resembled this problem, could use... (answered by Mathtut)

I have asked this question twice but gotten no response back and if I should click on... (answered by stanbon)

Hello, I need some assistance with this problem. Could you please help me with it?... (answered by stanbon)

Hello I have two word problems that I needed help on and I need help solving them. Could... (answered by stanbon)