Homework Help: college math

Posted by Lauren on Wednesday, November 18, 2009 at 11:20pm.

Can someone just tell me the formula to use for this problem?
Jack is taking a four item true/false test. He decides to flip a coin to answer. What is the probablility he gets a perfect score? What is the probablility on a 10 question test?

college math - PsyDAG, Wednesday, November 18, 2009 at 11:37pm
The probability of getting any one true-false item correct by chance = 1/2 = .5. To get the probability of all events occurring, you need to multiply the probability of the individual events.

four items = .5^4

10 items = .5^10

Answer this Question

Related Questions

math - Could someone please tell me if I am on track with my answer? Jack is ...
MATH Prob. - Jack is taking a four-item true–false test. He has no ...
Math - Jack is taking a four-item true-false test. He has no knowledge about the...
Algebra - Word Problem: Jack mows the lawn in 4 hours, mary mows the lawn in 5 ...
Math/Financing - I need help with a math problem. If someone finances an item at...
Math - I am trying to figure how to solve this but I am totally confused? Can ...
Physics - The question said find the speed of sound at a certain temperature. ...
Math - Consider the following spreadsheet: What formula would you use to ...
Math - Consider the following spreadsheet: What formula would you use to ...
algebra - Can someone show me how to use the quadratic formula to solve this ...

For Further Reading

First Name:
School Subject:
Answer: