SOLUTION: a teacher gives twelve questions on a quiz. The first two are true/false and the next 10 are A-D multiple choir. what is the probability a student answers all twelve wrong.
Algebra ->
Probability-and-statistics
-> SOLUTION: a teacher gives twelve questions on a quiz. The first two are true/false and the next 10 are A-D multiple choir. what is the probability a student answers all twelve wrong.
Log On
Question 712209: a teacher gives twelve questions on a quiz. The first two are true/false and the next 10 are A-D multiple choir. what is the probability a student answers all twelve wrong. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a teacher gives twelve questions on a quiz. The first two are true/false and the next 10 are A-D multiple choir. what is the probability a student answers all twelve wrong.
-----
# of possible answers: 4*40 = 160
# of wrong answers: 12
---
P(all wrong) = 12/160 = 3/40
==================================
Cheers,
Stan H.
================
(