document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1192596>Question 1192596</A>: <I><SPAN STYLE=\"word-break: break-all;\"> According to one survey in India, 75% of Instagram users love REELS. Suppose that 25<BR>\n" );
document.write( "Instagram users (randomly selected) have been approached in the university located in vile<BR>\n" );
document.write( "parle. They have been asked about their status of like/ dislike the Instagram- REELS.<BR>\n" );
document.write( "a) What is the probability that Exactly 15 of them would agree with the claim (or said they<BR>\n" );
document.write( "love Insta-REELS)?<BR>\n" );
document.write( "b) What is the probability that Exactly 20 of them would agree with the claim (or said they<BR>\n" );
document.write( "love Insta-REELS)?<BR>\n" );
document.write( "(5 Marks)<BR>\n" );
document.write( "3.b. ‘Bhartdarshan’ is an Internet-based travel agency wherein customers can see videos of the<BR>\n" );
document.write( "cities they plan to visit. The number of hits daily is a normally distributed random variable<BR>\n" );
document.write( "with a mean of 10,000 and a standard deviation of 2,400.<BR>\n" );
document.write( "a. What is the probability of getting more than 12,000 hits?<BR>\n" );
document.write( "b. What is the probability of getting fewer than 9,000 hits? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #824502 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=824502\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Exactly 15 would be 25C15*0.75^15*0.25^10 using binomial formula.<BR>\n" );
document.write( "=0.0417<BR>\n" );
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document.write( "Exactly 20 would be 25C20*0.75^20*0.25^5=0.1645<BR>\n" );
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document.write( "z=(x-mean)sd,<BR>\n" );
document.write( ">2000/2400 or 0.83<BR>\n" );
document.write( "probability is 0.2033 that z>0.83<BR>\n" );
document.write( "-<BR>\n" );
document.write( "probability is for z<-5/12  (-1000/2400)<BR>\n" );
document.write( "that is 0.3385 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );