Ask
your own question, for FREE!
Mathematics
23 Online
OpenStudy (anonymous):
A student guesses the answers to 6 questions on a true-false quiz. Find the probability that the indicated number of guesses are correct: exactly 4
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (campbell_st):
well this is a binomial probability question where the probability of success is p = 1/2 and probability of failure is 1/2 and you are choosing 4 from 6 so its \[P( 4 ) = ^6C_{4}(0.5)^{6-4}(0.5)^4\] just evaluate
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
MotorKinz:
i hope this isnt just me. u2764ufe0f Thereu2019s a quiet kind of chaos in growing up, the kind no one really warns you aboutu2014 not loud enough to be obvi
MrsTooTac:
Tips on being a Female Gamer/Streamer . What equipment's ?
prettygirl15:
dr.ridel indentifies three potential knights in shining armor that might keep misinformation and uninformed disingnous messnget at bay away these include A.
Twaylor:
Do we know why this happens? Wondering about the loophole it is trying.
MINNN:
I struggle alot with drawing hands does anyone have suggestions?
prettygirl15:
I need help on my critical thinking essay 500 words thatu2019s all I got for righ
gelphielvr:
which candy are they describing being made? "As described by a 1980 patient, the candy is made by dissolving sugars in water and is evaporated at 320F until
gelphielvr:
How do I get started? When the temperature of a rigid hollow sphere containing 685L of helium gas is held at 621K, the pressure of the gas is 1.
MotorKinz:
i hope this isnt just me. u2764ufe0f Thereu2019s a quiet kind of chaos in growing up, the kind no one really warns you aboutu2014 not loud enough to be obvi
19 minutes ago
14 Replies
4 Medals
MrsTooTac:
Tips on being a Female Gamer/Streamer . What equipment's ?
11 hours ago
5 Replies
3 Medals
prettygirl15:
dr.ridel indentifies three potential knights in shining armor that might keep misinformation and uninformed disingnous messnget at bay away these include A.
16 hours ago
2 Replies
0 Medals
Twaylor:
Do we know why this happens? Wondering about the loophole it is trying.
10 hours ago
7 Replies
0 Medals
MINNN:
I struggle alot with drawing hands does anyone have suggestions?
1 day ago
7 Replies
3 Medals
prettygirl15:
I need help on my critical thinking essay 500 words thatu2019s all I got for righ
4 days ago
6 Replies
2 Medals
gelphielvr:
which candy are they describing being made? "As described by a 1980 patient, the candy is made by dissolving sugars in water and is evaporated at 320F until
1 day ago
10 Replies
0 Medals
gelphielvr:
How do I get started? When the temperature of a rigid hollow sphere containing 685L of helium gas is held at 621K, the pressure of the gas is 1.
4 days ago
1 Reply
0 Medals