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OpenStudy (anonymous):
Can anyone help with this problem please
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OpenStudy (imstuck):
Do you have a problem to post?
OpenStudy (anonymous):
@IMStuck I posted a picture of the problem
OpenStudy (anonymous):
there is no picture
OpenStudy (anonymous):
Do you see the picture now ?
OpenStudy (anonymous):
@ninjasandtigers ^^
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OpenStudy (anonymous):
yup :)
OpenStudy (anonymous):
Do you think you can help?
OpenStudy (anonymous):
@IMStuck
OpenStudy (anonymous):
yup, so for 31, the probability of students guesses two questions correctly is between 1/2 and 1/4 so add those together and divide by 2 to get your answer
OpenStudy (anonymous):
@Laraneka
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