The data represented by the graph is normally distributed and adheres to the 68-95-99.7 rule. The standard deviation of this data is , and % of the data is either less than 4.2 or more than 11.4.
![The data represented by the graph is normally distributed and adheres to the 6895997 rule The standard deviation of this data is and of the data is either less class=](https://us-static.z-dn.net/files/d2b/18b2aefd34fb2bcd172375df88b498e7.png)
Answer: The standard deviation: 1.8
5% of the data
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