document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=200694>Question 200694</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Needing a little help please......?<BR>\n" );
document.write( "2 pts) The objective of statistics is best described as: \r<BR>\n" );
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document.write( "A) To make inferences about a sample based on information we get from a population<BR>\n" );
document.write( "B) To make inferences about a population based on information we get from a sample taken from the population<BR>\n" );
document.write( "C) To use population mean, m as an estimate of the sample mean, <BR>\n" );
document.write( "D) To make inferences about a sample with a high degree of reliability\r<BR>\n" );
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document.write( "2. (5 pts) Construct a frequency distribution of the ages that 30 randomly selected smokers started smoking:\r<BR>\n" );
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document.write( "25 26 25 17 16 16 14 17 21 16<BR>\n" );
document.write( "15 18 17 15 15 19 16 17 23 15<BR>\n" );
document.write( "19 17 16 26 16 25 16 17 22 24\r<BR>\n" );
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document.write( "3. (2 pts) Three-fourths of the numbers in any data set will be larger than the \r<BR>\n" );
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document.write( "A) third quartile B) fourth quartile C) median D) midrange\r<BR>\n" );
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document.write( "4. (2 pts) The number that appears most frequently in a data set is the \r<BR>\n" );
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document.write( "A) mean B) midrange C) median D) mode\r<BR>\n" );
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document.write( "5. (2 pts) Half of the scores in any data set are below the\r<BR>\n" );
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document.write( "A) first quartile B) second quartile C) third quartile D) median\r<BR>\n" );
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document.write( "6. (6 pts) Find the mean, median, and mode for the following set of data which shows the number of pages per article in a random sample of magazine articles.\r<BR>\n" );
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document.write( "6 7 5 4 7 5 5 7<BR>\n" );
document.write( "8 5 3 6 8 9 5\r<BR>\n" );
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document.write( "7. (8 pts) Construct a histogram and a frequency polygon for the following frequency distribution\r<BR>\n" );
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document.write( "Miles Number of Commuters<BR>\n" );
document.write( "Class Frequency<BR>\n" );
document.write( "0 - 20 7<BR>\n" );
document.write( "21 - 40 3<BR>\n" );
document.write( "41 - 60 12<BR>\n" );
document.write( "61 - 80 10<BR>\n" );
document.write( "81 –100 4\r<BR>\n" );
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document.write( "8. (5 pts) State True or False\r<BR>\n" );
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document.write( "a) A collection of all the objects to be studied is a population.<BR>\n" );
document.write( "b) A subset or part of the population is called a partial population. <BR>\n" );
document.write( "c) In a frequency distribution, the class size is always 4. <BR>\n" );
document.write( "d) The sum of the percents of the sectors in a pie chart should be 100%. <BR>\n" );
document.write( "e) A frequency distribution can be illustrated using a histogram.\r<BR>\n" );
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document.write( "9. (6 pts) In a study of 100 married women with children, the subjects were asked the major reason for working outside the home. The study resulted in the following data: \r<BR>\n" );
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document.write( "Reason Number of Responses<BR>\n" );
document.write( "To support self/family 65<BR>\n" );
document.write( "For extra money 20<BR>\n" );
document.write( "For something different to do 10<BR>\n" );
document.write( "Other 5<BR>\n" );
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document.write( "Total 100\r<BR>\n" );
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document.write( "Construct a pie chart for the data and analyze the results. \r<BR>\n" );
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document.write( "10. (2 pts) A county commissioner would like to find out how people in his county feel about a county lottery to support education. How might a cluster sample be selected? \r<BR>\n" );
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document.write( "11. (4 pts) The following statistics provide information about the scores on a national History exam. \r<BR>\n" );
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document.write( "Mean 540 First Quartile 260<BR>\n" );
document.write( "Median 450 Third Quartile 678<BR>\n" );
document.write( "Mode 468 90th Percentile 890\r<BR>\n" );
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document.write( "a) What score did half of the test takers surpass? <BR>\n" );
document.write( "b) What was the most common score? <BR>\n" );
document.write( "c) What percentage of the test takers scored 678 or better? <BR>\n" );
document.write( "d) If Joe had a score of 890, explain the meaning of his score.<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 #151170 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=151170\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Needing a little help please......?<BR>\n" );
document.write( "2 pts) The objective of statistics is best described as: <BR>\n" );
document.write( "A) To make inferences about a sample based on information we get from a population<BR>\n" );
document.write( "B) To make inferences about a population based on information we get from a sample taken from the population<BR>\n" );
document.write( "C) To use population mean, m as an estimate of the sample mean, <BR>\n" );
document.write( "D) To make inferences about a sample with a high degree of reliability <BR>\n" );
document.write( "---<BR>\n" );
document.write( "Ans: B<BR>\n" );
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document.write( "2. (5 pts) Construct a frequency distribution of the ages that 30 randomly selected smokers started smoking: <BR>\n" );
document.write( "25 26 25 17 16 16 14 17 21 16<BR>\n" );
document.write( "15 18 17 15 15 19 16 17 23 15<BR>\n" );
document.write( "19 17 16 26 16 25 16 17 22 24 <BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "14---------------1<BR>\n" );
document.write( "15---------------4<BR>\n" );
document.write( "16---------------7<BR>\n" );
document.write( "17---------------6<BR>\n" );
document.write( "18---------------1<BR>\n" );
document.write( "19---------------2<BR>\n" );
document.write( "21---------------1<BR>\n" );
document.write( "22---------------1<BR>\n" );
document.write( "23---------------1<BR>\n" );
document.write( "24---------------1<BR>\n" );
document.write( "25---------------3<BR>\n" );
document.write( "26---------------2\r<BR>\n" );
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document.write( "=====================================\r<BR>\n" );
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document.write( "3. (2 pts) Three-fourths of the numbers in any data set will be larger than the <BR>\n" );
document.write( "A) third quartile B) fourth quartile C) median D) midrange <BR>\n" );
document.write( "--<BR>\n" );
document.write( "Ans: A<BR>\n" );
document.write( "==================================================<BR>\n" );
document.write( "4. (2 pts) The number that appears most frequently in a data set is the <BR>\n" );
document.write( "A) mean B) midrange C) median D) mode <BR>\n" );
document.write( "Ans: D<BR>\n" );
document.write( "==================================================\r<BR>\n" );
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document.write( "5. (2 pts) Half of the scores in any data set are below the <BR>\n" );
document.write( "A) first quartile B) second quartile C) third quartile D) median <BR>\n" );
document.write( "Ans: B<BR>\n" );
document.write( "===================================================\r<BR>\n" );
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document.write( "6. (6 pts) Find the mean, median, and mode for the following set of data which shows the number of pages per article in a random sample of magazine articles. <BR>\n" );
document.write( "6 7 5 4 7 5 5 7<BR>\n" );
document.write( "8 5 3 6 8 9 5 \r<BR>\n" );
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document.write( "7. (8 pts) Construct a histogram and a frequency polygon for the following frequency distribution <BR>\n" );
document.write( "Miles Number of Commuters<BR>\n" );
document.write( "Class Frequency<BR>\n" );
document.write( "0 - 20 7<BR>\n" );
document.write( "21 - 40 3<BR>\n" );
document.write( "41 - 60 12<BR>\n" );
document.write( "61 - 80 10<BR>\n" );
document.write( "81 –100 4 \r<BR>\n" );
document.write( "\n" );
document.write( "8. (5 pts) State True or False <BR>\n" );
document.write( "a) A collection of all the objects to be studied is a population.<BR>\n" );
document.write( "T<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "b) A subset or part of the population is called a partial population.<BR>\n" );
document.write( "Maybe some texts will use this term<BR>\n" );
document.write( "------------- <BR>\n" );
document.write( "c) In a frequency distribution, the class size is always 4.<BR>\n" );
document.write( "F<BR>\n" );
document.write( "-------------- <BR>\n" );
document.write( "d) The sum of the percents of the sectors in a pie chart should be 100%.<BR>\n" );
document.write( "T<BR>\n" );
document.write( "---------------- <BR>\n" );
document.write( "e) A frequency distribution can be illustrated using a histogram. <BR>\n" );
document.write( "T<BR>\n" );
document.write( "-----------------\r<BR>\n" );
document.write( "\n" );
document.write( "9. (6 pts) In a study of 100 married women with children, the subjects were asked the major reason for working outside the home. The study resulted in the following data: <BR>\n" );
document.write( "Reason Number of Responses<BR>\n" );
document.write( "To support self/family 65<BR>\n" );
document.write( "For extra money 20<BR>\n" );
document.write( "For something different to do 10<BR>\n" );
document.write( "Other 5<BR>\n" );
document.write( "--------------------------------------...<BR>\n" );
document.write( "Total 100 <BR>\n" );
document.write( "Construct a pie chart for the data and analyze the results. <BR>\n" );
document.write( "================================================================<BR>\n" );
document.write( "10. (2 pts) A county commissioner would like to find out how people in his county feel about a county lottery to support education. How might a cluster sample be selected? <BR>\n" );
document.write( "See your text book.<BR>\n" );
document.write( "===================================================================\r<BR>\n" );
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document.write( "11. (4 pts) The following statistics provide information about the scores on a national History exam. <BR>\n" );
document.write( "Mean 540 First Quartile 260<BR>\n" );
document.write( "Median 450 Third Quartile 678<BR>\n" );
document.write( "Mode 468 90th Percentile 890 <BR>\n" );
document.write( "a) What score did half of the test takers surpass?<BR>\n" );
document.write( "450<BR>\n" );
document.write( "------------------ <BR>\n" );
document.write( "b) What was the most common score? <BR>\n" );
document.write( "468<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "c) What percentage of the test takers scored 678 or better?<BR>\n" );
document.write( "25%<BR>\n" );
document.write( "----------------- <BR>\n" );
document.write( "d) If Joe had a score of 890, explain the meaning of his score.<BR>\n" );
document.write( "90% of the people tested had a lower score than him.<BR>\n" );
document.write( "===========================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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