Saturday
April 25, 2015

Homework Help: math

Posted by Punkie on Wednesday, November 18, 2009 at 10:57pm.

Could someone please tell me if I am on track with my answer?

Jack is taking a four-item true-false test. He has no knowledge about the subject of the test and decides to flip a coin to answer the items. What is the probability that he receives a perfect score? What is the probability on a 10-item test?


P(coin being correct in a 4 item t or f test) = 2/4

P(coin being correct in a 10 item t or f test) = 2/10 or 1/5

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Members