Obtain the standard deviation of the random variable.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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I need part B
**Understanding Hurricane Data**

This educational module helps to interpret the data related to the occurrence of major hurricanes.

**Questions and Instructions:**

1. **Determine the Mean Number of Major Hurricanes:**
   - The query posed is to find the mean (average) number of major hurricanes.
   - A sample answer might be: "The average number of major hurricanes per year is 2.319."

2. **Interpreting the Mean Value:**
   - The average number of major hurricanes (2.319) can be interpreted as indicating that, on average, about 2.319 major hurricanes occur each year.
   - The phrasing could be: "Every year will have at least 2 major hurricane(s)."

3. **Calculating the Standard Deviation:**
   - Another task is to obtain the standard deviation to measure the amount of variation or dispersion of the hurricane data.
   - The value could be computed as follows: "The standard deviation of the number of major hurricanes per year is [standard deviation value, rounded to three decimal places]."

**Graphical Representation:**

The module features a table depicting the "Distribution of Major Hurricanes". Below is an interpretation of the table:

| N = x  | P(X = x) |
|--------|----------|
| 0      | 0.012    |
| 1      | 0.078    |
| 2      | 0.283    |
| 3      | 0.253    |
| 4      | 0.160    |
| 5      | 0.094    |
| 6      | 0.054    |
| 7      | 0.046    |
| 8      | 0.020    |

**Explanation of the Table:**
- **N = x**: This column represents the number of major hurricanes.
- **P(X = x)**: This column represents the probability of each number of hurricanes occurring.
- For example, there is a probability of 0.012 that there will be 0 major hurricanes in a year, and a probability of 0.283 that there will be 2 major hurricanes in a year.

**Resources:**
- **Help me solve this**
- **View an example**
- **Get more help**

These resources are likely links or buttons provided to assist students in understanding and solving the problem.

**Further Instructions:**
- Remember to round the calculated results
Transcribed Image Text:**Understanding Hurricane Data** This educational module helps to interpret the data related to the occurrence of major hurricanes. **Questions and Instructions:** 1. **Determine the Mean Number of Major Hurricanes:** - The query posed is to find the mean (average) number of major hurricanes. - A sample answer might be: "The average number of major hurricanes per year is 2.319." 2. **Interpreting the Mean Value:** - The average number of major hurricanes (2.319) can be interpreted as indicating that, on average, about 2.319 major hurricanes occur each year. - The phrasing could be: "Every year will have at least 2 major hurricane(s)." 3. **Calculating the Standard Deviation:** - Another task is to obtain the standard deviation to measure the amount of variation or dispersion of the hurricane data. - The value could be computed as follows: "The standard deviation of the number of major hurricanes per year is [standard deviation value, rounded to three decimal places]." **Graphical Representation:** The module features a table depicting the "Distribution of Major Hurricanes". Below is an interpretation of the table: | N = x | P(X = x) | |--------|----------| | 0 | 0.012 | | 1 | 0.078 | | 2 | 0.283 | | 3 | 0.253 | | 4 | 0.160 | | 5 | 0.094 | | 6 | 0.054 | | 7 | 0.046 | | 8 | 0.020 | **Explanation of the Table:** - **N = x**: This column represents the number of major hurricanes. - **P(X = x)**: This column represents the probability of each number of hurricanes occurring. - For example, there is a probability of 0.012 that there will be 0 major hurricanes in a year, and a probability of 0.283 that there will be 2 major hurricanes in a year. **Resources:** - **Help me solve this** - **View an example** - **Get more help** These resources are likely links or buttons provided to assist students in understanding and solving the problem. **Further Instructions:** - Remember to round the calculated results
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