A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
You have a 5question multiplechoice test. Each question has four choices. You don’t know any of the answers. What is the experimental probability that you will guess exactly three out of five questions correctly? Type your answer below using complete sentences.
anonymous
 one year ago
You have a 5question multiplechoice test. Each question has four choices. You don’t know any of the answers. What is the experimental probability that you will guess exactly three out of five questions correctly? Type your answer below using complete sentences.

This Question is Closed

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0If the experimental probability equals the number of your specific events divided by the total events, then all we have to do is work them out.

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0What is the sum of all the possibilities combined?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't understand the question at all

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0Experimental probability is the ratio of the number of times an event occurs to the total number of trials or times the activity is performed.

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0So it's asking for you to find the probability that you will get 3 out of the 5 total questions in the test right, where there are 4 different choices for each.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so would you use 20 since each question has 4 choices?

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0Let's think of it this way. If the probability of getting the question right is 1/4, and the probability of getting it wrong is 3/4, then essentially you will find your final result to be 1/4 * 1/4 * 1/4 *3/4 *3/4

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0As you need 3 right.. So there's your answer.

sepeario
 one year ago
Best ResponseYou've already chosen the best response.0What does 1/4 * 1/4 * 1/4 *3/4 *3/4 equal?
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.