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OpenStudy (anonymous):
the marks for a test are normally distributed with mean,A and standard deviation,B.if 8% of student obtain more than 75 marks and 20% less than 40 marks.find mean and standard deviation
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OpenStudy (anonymous):
urgenttt :(
OpenStudy (graciebugg):
@Sheraz12345
OpenStudy (sheraz12345):
Extremely sorry @pengembara_bumi1 :/
OpenStudy (sheraz12345):
@hartnn can u help him
OpenStudy (anonymous):
:/ @Sheraz12345
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OpenStudy (graciebugg):
@pooja195
OpenStudy (anonymous):
thanks @GracieBugg ><
OpenStudy (graciebugg):
Im Trying lol
OpenStudy (anonymous):
okeyyy @GracieBugg :D
OpenStudy (graciebugg):
@dan815
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OpenStudy (tkhunny):
Are you in the same class? http://openstudy.com/study#/updates/550dc231e4b0d83bf52e0de5
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