The histogram shows the distribution of hurricanes that have hit a country from 1851 through​ 2015, where 1 is the weakest level and 5 is the strongest level. ​(a) Find the​ mean, variance, and...









The histogram shows the distribution of hurricanes that have hit a country from 1851 through​ 2015, where 1 is the weakest level and 5 is the strongest level.


​(a) Find the​ mean, variance, and standard deviation of the probability distribution.

​(b) Interpret the results.



​(a) The mean is
enter your response here.


​(Type an integer or a decimal. Do not​ round.)

Part 2

The variance is
enter your response here.


​(Round to two decimal places as​ needed.)

Part 3

The standard deviation is
enter your response here.


​(Round to two decimal places as​ needed.)

Part 4

​(b) Interpret the results. Select all that apply.








A.


The typical hurricane deviates from the mean by about 1 category level.






B.


The average hurricane is approximately category 1.






C.


The average hurricane is approximately category 2.






D.


The typical hurricane deviates from the mean by about 2 category levels.








Hurricanes<br>0.5-<br>0.4-<br>0.3-<br>0.2-<br>a 0.1-<br>0.01<br>1<br>0.409<br>0.269<br>0.214<br>0.099<br>0.009<br>2<br>3<br>4<br>5<br>Category<br>Probability<br>

Extracted text: Hurricanes 0.5- 0.4- 0.3- 0.2- a 0.1- 0.01 1 0.409 0.269 0.214 0.099 0.009 2 3 4 5 Category Probability

Jun 10, 2022
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