Difference between revisions of "EBook Problems EDA Pics"
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:''(d) pie charts | :''(d) pie charts | ||
| + | {{hidden|Answer|(b)}} | ||
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| + | ===Problem 4=== | ||
| + | Your local running club has its own track and keeps accurate records of each member's age and individual best lap time around the track so members can make comparisons with their peers. The club publishes the histogram for age of the members and another histogram for their running times (the histograms are not shown here). These histograms are very symmetric, almost bell shaped. Suppose you wanted to show a group of new members how much joining this team improves people's running times. Are the two histograms published by the club useful to show this? | ||
| + | |||
| + | *Choose one answer. | ||
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| + | :''(a) Yes, the time one because it shows the time | ||
| + | |||
| + | :''(b) No, because they are not comparing times for those who are not in the club and time for those who are in the club | ||
| + | |||
| + | :''(c) No sets of histograms could show this point | ||
| + | |||
| + | :''(d) Yes, the age one, because it shows that there are people of all ages in this club | ||
{{hidden|Answer|(b)}} | {{hidden|Answer|(b)}} | ||
Revision as of 14:32, 1 January 2009
Contents
EBook Problems Set - Pictures of Data Problems
Problem 1
Two random samples were taken to determine backpack load difference between seniors and freshmen, in pounds. The following are the summaries:
| Year | Mean | SD | Median | Min | Max | Range | Count |
| Freshmen | 20.43 | 4.21 | 17.20 | 5.78 | 31.68 | 25.9 | 115 |
| Senior | 18.67 | 3.56 | 18.67 | 5.31 | 27.66 | 22.35 | 157 |
Which of the following plots would be the most useful in comparing the two sets of backpack weights?
- Choose One Answer:
- (a) Histograms
- (b) Dot Plots
- (c) Scatter Plots
- (d) Box Plots
Problem 2
School administrators are interested in examining the relationship between height and GPA. What type of plot should they use to display this relationship?
- Choose one answer.
- (a) box plot
- (b) scatter plot
- (c) line plot
- (d) dot plot
Problem 3
What would be the most appropriate plot for comparing the heights of the 8th graders from different ethnic backgrounds?
- Choose one answer.
- (a) bar charts
- (b) side by side boxplot
- (c) histograms
- (d) pie charts
Problem 4
Your local running club has its own track and keeps accurate records of each member's age and individual best lap time around the track so members can make comparisons with their peers. The club publishes the histogram for age of the members and another histogram for their running times (the histograms are not shown here). These histograms are very symmetric, almost bell shaped. Suppose you wanted to show a group of new members how much joining this team improves people's running times. Are the two histograms published by the club useful to show this?
- Choose one answer.
- (a) Yes, the time one because it shows the time
- (b) No, because they are not comparing times for those who are not in the club and time for those who are in the club
- (c) No sets of histograms could show this point
- (d) Yes, the age one, because it shows that there are people of all ages in this club
- Back to Ebook
- SOCR Home page: http://www.socr.ucla.edu
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