document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=259392>Question 259392</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a craftsperson is able  to etch 25 windows per day if they are able to use the laser etching device, and 8 windows per day if they must etch by hand. if they can use the laser etching device 70% of the time, find the expected number of windows they etch per day </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #190965 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=190965\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a craftsperson is able to etch 25 windows per day if they are able to use the laser etching device, and 8 windows per day if they must etch by hand. if they can use the laser etching device 70% of the time, find the expected number of windows they etch per day<BR>\n" );
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document.write( "P(use laser) = 0.7<BR>\n" );
document.write( "P(use manual) = 0.3<BR>\n" );
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document.write( "Random Variable Values is 25 and 8<BR>\n" );
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document.write( "Expected numbers are 0.7*25 + 0.3*8 = 17.5 + 2.4 = 19.9 windows per day<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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