document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=417624>Question 417624</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A recent study of cardiovascular risk factors reports that 30% of adults meet the criteria for hypertension. If 15 adults are assessed, what is the probability that:<BR>\n" );
document.write( "a.	Exactly 15 meet the criteria for hypertension?<BR>\n" );
document.write( "b.	None meet the criteria for hypertension? <BR>\n" );
document.write( "c.	Less than or equal to 7 meet the criteria for hypertension?\r<BR>\n" );
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document.write( "Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12.<BR>\n" );
document.write( "a.	What proportion of people have diastolic blood pressures less that 90?<BR>\n" );
document.write( "b.	What proportions have diastolic blood pressures between 80 and 90?<BR>\n" );
document.write( "c.	If someone has a diastolic blood pressure of 100, what percentile does this represent? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #292367 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=292367\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A recent study of cardiovascular risk factors reports that 30% of adults meet the criteria for hypertension. If 15 adults are assessed, what is the probability that:<BR>\n" );
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document.write( "Binomial Problem with n=15 and p = 0.3<BR>\n" );
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document.write( "a. Exactly 15 meet the criteria for hypertension?:::0.3^15<BR>\n" );
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document.write( "b. None meet the criteria for hypertension?::0.7^15<BR>\n" );
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document.write( "c. Less than or equal to 7 meet the criteria for hypertension?<BR>\n" );
document.write( "binomcdf(15,0.3,7) = 0.9500<BR>\n" );
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document.write( "Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12.<BR>\n" );
document.write( "a. What proportion of people have diastolic blood pressures less that 90?<BR>\n" );
document.write( "z(90) = (90-85)/12 = 0.4167<BR>\n" );
document.write( "P(x<90) = P(z<0.4167) = normalcdf(-100,0.4167) = 0.6616<BR>\n" );
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document.write( "b. What proportions have diastolic blood pressures between 80 and 90?<BR>\n" );
document.write( "Find the z-values and find the proportion between them.<BR>\n" );
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document.write( "c. If someone has a diastolic blood pressure of 100, what percentile does this represent?<BR>\n" );
document.write( "On a normal distribution the probability of any particular value is zero.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. \r<BR>\n" );
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