As part of a survey, 17 adults were asked, "How many hours did you spend at your job last week?" The results are shown in the stem-and-leaf display below. Use the display to answer the questions that follow. Number of hours worked last week 2 024 3 4446779 455999 558 Key: 2|0 means 20 hours. (a) What was the least number of hours worked overall? (b) What was the highest number of hours worked in the 40s? (c) How many responses fell in the 50s?
As part of a survey, 17 adults were asked, "How many hours did you spend at your job last week?" The results are shown in the stem-and-leaf display below. Use the display to answer the questions that follow. Number of hours worked last week 2 024 3 4446779 455999 558 Key: 2|0 means 20 hours. (a) What was the least number of hours worked overall? (b) What was the highest number of hours worked in the 40s? (c) How many responses fell in the 50s?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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Transcribed Image Text:As part of a survey, 17 adults were asked, "How many hours did you spend at your job last week?" The results are shown in the stem-and-leaf display below. Use the display to answer the questions that follow.
**Number of hours worked last week:**
- **2 |** 0 2 4
- **3 |** 4 4 4 6 7 7 9
- **4 |** 5 5 9 9 9
- **5 |** 5 8
**Key:** 2 | 0 means 20 hours.
**Questions:**
(a) What was the least number of hours worked overall?
(b) What was the highest number of hours worked in the 40s?
(c) How many responses fell in the 50s?
The stem-and-leaf plot is a method of displaying quantitative data in a compact form. In this case, the "stem" represents the tens digit, and the "leaf" represents the units digit of the number of hours worked.
- For example, "2 | 0" on the plot indicates "20 hours."
- The numbers in the stem-and-leaf plot are organized from least to greatest within each stem, which helps in quickly identifying the smallest and largest numbers in each category.
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