document.write( "Question 856492: 8% of student are left handed. if 20 student are randomly selected calculate
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\n" ); document.write( "iii) mean and standard deviation for the number of left handed student \n" ); document.write( "

Algebra.Com's Answer #515992 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "p(left-handed) = .08, p (right-handed) = 0.92,   n = 20
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document.write( "i)probability that right handed  
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document.write( "ii)probability that at most 2 are left handed: P(x ≤ 2)= binomcdf(20,.08,2)
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document.write( "iii) mean and standard deviation for the number of left handed student
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document.write( "    mean = .08*20 = 1.6 , SD = sqrt(1.6*.92) = 1.233
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document.write( "round off as directed. \n" );
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