SOLUTION: How do you solve: An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer. Thank

Question 372516: How do you solve:
An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer.
Thank you very much!
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
We'll work the problem backwards.
Let find the probability that every answer is incorrect.

.
.
P(at least 1 T)+P(10F)=
P(at least 1 T)=
P(at least 1 T)=
P(at least 1 T)=
RELATED QUESTIONS
An unprepared student makes random guesses for the ten true-false questions on a quiz.... (answered by stanbon)

an unprepared student makes random guesses for the ten true-false questions on a quiz.... (answered by edjones)

An unprepared student makes random guesses on a 5 question true-false examination. What... (answered by richard1234)

An unprepared student makes random guesses for 6 multiple choice questions that have... (answered by solver91311)

An unprepared student makes random guesses for 6 multiple choice questions that have... (answered by stanbon)

A student is taking a true/false quiz. The quiz has ten questions. If the student guesses (answered by psbhowmick,Nate)

A student is unprepared for a true/false quiz. The quiz has 5 questions. If she guesses... (answered by lynnlo)

1. An urn contains 15 marbles � 8 blue, 5 red, and 2 white. If 2 marbles are chosen... (answered by Fombitz,jim_thompson5910)

An unprepared student takes a 3-question true/false quiz in which he guesses the answers... (answered by math_tutor2020,ikleyn)