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| 1 | |
Which of the following is a primary source of data? |
| | A) | Rita consulted the stock listings in a major newspaper to track the value of a stock over a period of two months. |
| | B) | Sam consulted a weather site on the Internet to obtain data on tornado occurrences in Ontario over the past 50 years. |
| | C) | Teri obtained scoring data for her favourite soccer team over the past 5 seasons from a summary in a sports magazine. |
| | D) | Ulla consulted a history text to find data on total casualties for several major conflicts. |
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| 2 | |
Which of the following is an example of a systematic random sample? |
| | A) | Charlene put the names of all of the people in her class into a hat, and then picked 3. |
| | B) | David is surveying people attending a country fair. He rolled a die to determine which person he would first ask how they had heard about the fair. After that, he asked every 10th person. |
| | C) | Eamon wanted to know what kinds of activities would be suitable for a block picnic. He telephoned six of his neighbours to ask their opinions. |
| | D) | Fedya needed to select 10 of the 120 members of the tennis club to fill out a survey. He programmed a computer to pick 10 random numbers from 1 to 120, and applied them on a list of club members. |
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| 3 | |
Discarding data that does not appear to follow a pattern is known as |
| | A) | interpolation |
| | B) | extrapolation |
| | C) | drawing a line of best fit |
| | D) | removing outliers |
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| 4 | |
A statement that explains what an experiment will attempt to prove or disprove is known as a |
| | A) | procedure |
| | B) | evaluation |
| | C) | hypothesis |
| | D) | conclusion |
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| 5 | |
Halmi hypothesizes that at least 60% of the students in his school have access to a computer at home. The opposite of this hypothesis is: |
| | A) | 60% or fewer of the students in the school have access to a computer at home. |
| | B) | Fewer than 60% of the students in the school have access to a computer at home. |
| | C) | More than 60% of the students in the school have access to a computer at home. |
| | D) | 60% or more of the students in the school have access to a computer at home. |
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| 6 | |
Indira hypothesizes that at least 80% of Canadians will answer their phones by the third ring, and that none answer after the 10th ring. Identify the population that Indira must survey to test her hypothesis. |
| | A) | Canadians |
| | B) | people who own telephones |
| | C) | Canadians who own telephones |
| | D) | Canadians who answer their telephones after the 10th ring |
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| 7 | |
Which scatter plots show a non-linear relation? |
| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070973199/362680/pom9_ch2_study_quiz1_ques7a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
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| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070973199/362680/pom9_ch2_study_quiz1_ques7b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
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| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070973199/362680/pom9_ch2_study_quiz1_ques7c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
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| | D) | All of these show a non-linear relation. |
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| 8 | |
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070973199/362680/pom9_ch2_study_quiz1_ques8.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (8.0K)</a>]]>
Verena grows evergreen trees on her tree farm. She has recorded the average height of each lot of trees in metres against the years of growth, as shown. Estimate the average height of the trees after 3.5 years of growth. |
| | A) | 0.9 m |
| | B) | 1.0 m |
| | C) | 1.1 m |
| | D) | 1.2 m |
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| 9 | |
Estimate the expected height of the trees in question #8 after 10 years of growth. |
| | A) | 1.8 m |
| | B) | 1.9 m |
| | C) | 2.0 m |
| | D) | 2.2 m |
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| 10 | |
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070973199/362680/pom9_ch2_study_quiz1_ques10.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (53.0K)</a>]]>
Wali put on his inline skates at Yootha's house, which was 7 km from his house. He skated as shown in the graph. What was the total distance that he skated? |
| | A) | 4 km |
| | B) | 7 km |
| | C) | 8 km |
| | D) | 18 km |
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