document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1105924>Question 1105924</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 225 customers on the number of hours cars are parked and the amount they are charged.<BR>\n" );
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document.write( "Number of Hours	 	Frequency	 	Amount Charged<BR>\n" );
document.write( "1	 	15	 	$	2<BR>\n" );
document.write( "2	 	38	 	 	5<BR>\n" );
document.write( "3	 	50	 	 	9<BR>\n" );
document.write( "4	 	45	 	 	13<BR>\n" );
document.write( "5	 	20	 	 	14<BR>\n" );
document.write( "6	 	16	 	 	16<BR>\n" );
document.write( "7	 	5	 	 	18<BR>\n" );
document.write( "8	 	36	 	 	20<BR>\n" );
document.write( " 	 	225	 	 	 \r<BR>\n" );
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document.write( "a-1. Convert the information on the number of hours parked to a probability distribution. (Round your answers to 3 decimal places.)\r<BR>\n" );
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document.write( "Hours / Probability<BR>\n" );
document.write( "1      ?<BR>\n" );
document.write( "2      ?<BR>\n" );
document.write( ".?<BR>\n" );
document.write( ".?<BR>\n" );
document.write( ".?<BR>\n" );
document.write( "8.?<BR>\n" );
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document.write( "a-2. Is this a discrete or a continuous probability distribution\r<BR>\n" );
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document.write( "()Discrete<BR>\n" );
document.write( "()Continuous\r<BR>\n" );
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document.write( "b-1. Find the mean and the standard deviation of the number of hours parked. (Do not round the intermediate calculations. Round your final answers to 3 decimal places.)\r<BR>\n" );
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document.write( "b-2. How long is a typical customer parked? (Do not round the intermediate calculations. Round your final answer to 3 decimal places.)\r<BR>\n" );
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document.write( "c. Find the mean and the standard deviation of the amount charged. (Do not round the intermediate calculations. Round your final answers to 3 decimal places.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #720846 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=720846\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Number of Hours	Frequency	Amount Charged<BR>\n" );
document.write( "1	           15	               $2<BR>\n" );
document.write( "2	           38	                5<BR>\n" );
document.write( "3	           50	                9<BR>\n" );
document.write( "4	           45	               13<BR>\n" );
document.write( "5	           20	               14<BR>\n" );
document.write( "6	           16	               16<BR>\n" );
document.write( "7	            5	               18<BR>\n" );
document.write( "8	           36	               20<BR>\n" );
document.write( "                  225	\r<BR>\n" );
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document.write( "a-1. Convert the information on the number of hours parked to a probability distribution. (Round your answers to 3 decimal places.) <BR>\n" );
document.write( "Hours / Probability<BR>\n" );
document.write( "1/ 15/225<BR>\n" );
document.write( " 2/ 38/225<BR>\n" );
document.write( " 3/ 50/225<BR>\n" );
document.write( "et cetera<BR>\n" );
document.write( ".?<BR>\n" );
document.write( ".?<BR>\n" );
document.write( "8.?\r<BR>\n" );
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document.write( "a-2. Is this a discrete or a continuous probability distribution <BR>\n" );
document.write( "()Discrete:: yes<BR>\n" );
document.write( "()Continuous \r<BR>\n" );
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document.write( "b-1. Find the mean and the standard deviation of the number of hours parked. (Do not round the intermediate calculations. Round your final answers to 3 decimal places.) <BR>\n" );
document.write( "Multiply (# of hours) times (frequency)<BR>\n" );
document.write( "Add those products<BR>\n" );
document.write( "Divide by the sum of the frequencies to get the mean.<BR>\n" );
document.write( "I'll leave the standard deviation to you.\r<BR>\n" );
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document.write( "b-2. How long is a typical customer parked? (Do not round the intermediate calculations. Round your final answer to 3 decimal places.)<BR>\n" );
document.write( "That is the mean of b-1 \r<BR>\n" );
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document.write( "c. Find the mean and the standard deviation of the amount charged. (Do not round the intermediate calculations. Round your final answers to 3 decimal places.)<BR>\n" );
document.write( "Multiply (cost per hour) times (frequency)<BR>\n" );
document.write( "Add those products<BR>\n" );
document.write( "Divide by the sum of the frequencies.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-----------------  </SPAN>\n" );
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