Same Data in Different Graphs The histogram below and pie chart represent student grade point averages. Use the information from the charts to answer the next three problems. 
32) What grade point average do most students fall in? State the grade point average range and which graph you used to find your answer.
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33) What is the total percent of students that have a grade-point average above 2.4? State the percent and which graph you used to find your answer.
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34) What are the advantages of each display?
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The graphs below show the same data displayed in a bar graph and a line graph. Refer to the graphs to answer the next two problems.
35) What day is the warmest? What are the high and low temperatures on that day?
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36) Which graph is better to show the change of temperature over the five days? Please explain.
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Misleading Statistics
37) An engineering company has 5 employees with salaries listed in the table below. The owner places an ad as shown below and lists that the average salary as $85,000. Is the ad misleading? If so, why?
a.) No; The average salary is not misleading.b.) Yes; The owner's salary should not be included when figuring the average salary.c.) Yes; There is only one person in the company that makes over $72,000.d.) Both b and c
38) Karlisha made two line graphs that represent her math grades over a nine-week period. She wants to show her parents that she is steadily improving. Which graph should she show her parents, Graph A or Graph B? Explain why by comparing both graphs?
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39) The histogram below represents ages of people who requested a brochure at a pet show. Is the graph below misleading? Why or why not?
a.) No, the graph is not misleading.b.) Yes, the bar for 61 - 70 appears shorter because it represents a range of ten years and the other bars represent a range of twenty years.c.) Yes, the bar for 31 - 50 appears taller because it represents a range of twenty years while the other bars represent a range of ten years.d.) Yes, the number of people shown on the y-axis should start at another number other than zero.
40) The graph below represents the population of a city for three consecutive years. Why is the graph misleading?
a.) The population appears to be increasing through cylinders of different lengths representing the same value.b.) The population appears to be increasing through cylinders of the same length representing different values.c.) The population appears to be increasing through cylinders of different lengths representing different values.d.) The graph is not misleading.
41) Refer to the graph below. Explain why the graph is misleading.
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Review
42) The 2005 Atlantic's tropical storms are listed in the table below based on Saffir-Simpson scale. Find the mean (to the nearest tenth), median, mode, and range of the wind speeds.
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43) The band director signed up new students in the band for woodwind instruments on Wednesday. He completed the chart shown below. He then drew a circle graph from the data collected. Which of the circle graphs represent the students playing woodwind instruments? State the letter of the correct answer.
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44) Ten people donated money to a local school. One donated $201 and the remaining donated $1 each. Which is NOT a misleading statement?a.) The mode is $1.b.) The median is $1.c.) The mean is $21, and it does not describe the data adequately.d.) The mean is $21, and it adequately describes the data.
The table and pictograph below represent the percentage of different age groups in the United States that spend money on sporting apparel. Use the pictograph to answer the next four problems.
45) What percent does each symbol represent?
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46) Which age range and what percent of that age range purchases the most sporting apparel? Which age range and what percent of that age range purchases the least sporting apparel?
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47) Which age group spends about twice as much on sporting apparel as the “55 and older” age group? a.) 12 and youngerb.) 13 – 17c.) 18 – 24d.) 25 – 34e.) 35 - 54
48) Which age group spends about two-thirds (2/3) as much on sporting apparel as the “12 and younger” age group?a.) 13 – 17b.) 18 – 24c.) 25 – 34d.) 35 – 54e.) 55 and older
Can anyone help with the last part of my lesson? :
02-18-2008
Linear Mode
