document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1051829>Question 1051829</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the standard deviation of the binomial random variable.\r<BR>\n" );
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document.write( "According to a college&#8203; survey, 22% of all students work full time. Find the standard deviation for the random variable&#8203; X, the number of students who work full time in samples of size 16. Round your answer to two decimal places\r<BR>\n" );
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document.write( "I used the square root *22*16*.84 but its not right am I using the right formula ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #667312 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=667312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The mean of the sample is 0.22, the probability(P) of success in the population<BR>\n" );
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document.write( "The standard deviation of the sample is the square root ( (P * (1-P)) / sample size ) = square root ( (0.22 * 0.78) / 16 ) = 0.1036<BR>\n" );
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document.write( "The standard deviation of the sample is 0.10<BR>\n" );
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