Mathematics, 01.12.2020 22:40 pandamaknae2003
5. Use the following information to answer the questions.
• A survey asked 75 people if they wanted a later school day start time.
• 45 people were students, and the rest were teachers.
• 50 people voted yes for the later start.
• 30 students voted yes for the later start.
a) Use this information to complete the frequency table. (5 points: 1 point for
each cell that was not given above)
Vote YES for later start
Vote NO for later start
Total
Students
Teachers
Total
b) Use the completed table from Part a. What percentage of the people surveyed
were teachers? (2 points)
c) Use the completed table from Part a. What percentage of the people surveyed
were teachers who wanted a later start time? (2 points)
d) What does the number in the bolded cell represent? (1 point)
6. Middle school class representatives conducted a poll during lunch to see which activity students wanted for their year-end party . The results are shown in this relative frequency table:
Water slides Total Roller skating 0.33 0.17 0.50 0.15 0.15 0.30 6th grade 7th grade 8th grade Total 0.14 0.060.20 0.46 0.54 1.0
a) For the entire school , which was more popular , water slides or roller skating ? (1 point )
b) 34 % of the 6th graders and 50% of the 7th graders want to go to the water slides . What percentage of the 8th graders want to go to the water slides ? (1 point )
c) Does there seem to an association between grade level and field trip choice ? (2 points)
d) If this trend continued, would you expect 9th graders to prefer the water slides or roller skating ? Explain your answer. (2 points)
Answers: 3
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5. Use the following information to answer the questions.
• A survey asked 75 people if they wanted...
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