MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question
100%

Determine the value of the fourth spread.

and

By how much could the largest observation, currently 421, be decreased without affecting the value of the fourth spread?

### Simulated Escape Exercise for Offshore Oil Workers A sample of 26 offshore oil workers took part in a simulated escape exercise. The accompanying data represent the time taken (in seconds) for each worker to complete the escape. The data is presented using a stem-and-leaf plot. #### Stem-and-Leaf Plot of Escape Time Data The stem-and-leaf plot below shows the time taken (in seconds) for each offshore oil worker to complete the escape exercise: ``` Stem | Leaf --------|------ 32 | 55 33 | 49 34 | 35 | 6699 36 | 4469 37 | 03345 38 | 2 39 | 2347 40 | 23 41 | 42 | 1 ``` #### Explanation of the Stem-and-Leaf Plot - Each "stem" represents the leading digits of the escape times. - Each "leaf" represents the trailing digit of the escape times. - For instance, a leaf of 55 on the stem 32 represents an escape time of 325 seconds. - Similarly, a leaf of 1 on the stem 42 represents an escape time of 421 seconds. This plot helps to visually organize and summarize the escape times, making it easier to identify patterns and outliers in the data.
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Transcribed Image Text:### Simulated Escape Exercise for Offshore Oil Workers A sample of 26 offshore oil workers took part in a simulated escape exercise. The accompanying data represent the time taken (in seconds) for each worker to complete the escape. The data is presented using a stem-and-leaf plot. #### Stem-and-Leaf Plot of Escape Time Data The stem-and-leaf plot below shows the time taken (in seconds) for each offshore oil worker to complete the escape exercise: ``` Stem | Leaf --------|------ 32 | 55 33 | 49 34 | 35 | 6699 36 | 4469 37 | 03345 38 | 2 39 | 2347 40 | 23 41 | 42 | 1 ``` #### Explanation of the Stem-and-Leaf Plot - Each "stem" represents the leading digits of the escape times. - Each "leaf" represents the trailing digit of the escape times. - For instance, a leaf of 55 on the stem 32 represents an escape time of 325 seconds. - Similarly, a leaf of 1 on the stem 42 represents an escape time of 421 seconds. This plot helps to visually organize and summarize the escape times, making it easier to identify patterns and outliers in the data.
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Step 2: Calculate the fourth spread
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Step 3: Calculate by how much the largest observation can be reduced
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