Suppose that a publisher conducted a survey asking adult consumers the number of fiction paperback books they had purchased in the previous month. The results are summarized in the table below. # of books Frequency Relative Frequency 0 18   1 24   2 25   3 21   4 15   5 10   7 5   9 1   Are any data values further than 2 standard deviations away from the mean? In some situations, statisticians may use this criteria to identify data values that are unusual, compared to the other data values. (Note that this criteria is most appropriate to use for data that is mound-shaped and symmetric, rather than for skewed data. Round your answers to two decimal places.)    *Please give detail explanation as well please, I'm just trying to understand this*  x − 2s =   x + 2s =       2.) Can you explain in writing how to find the quartiles and solve it? Can you provide everything you know about it please, that would be helpful

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Suppose that a publisher conducted a survey asking adult consumers the number of fiction paperback books they had purchased in the previous month. The results are summarized in the table below.

# of books Frequency Relative Frequency
0 18  
1 24  
2 25  
3 21  
4 15  
5 10  
7 5  
9 1  

Are any data values further than 2 standard deviations away from the mean? In some situations, statisticians may use this criteria to identify data values that are unusual, compared to the other data values. (Note that this criteria is most appropriate to use for data that is mound-shaped and symmetric, rather than for skewed data. Round your answers to two decimal places.) 

 

*Please give detail explanation as well please, I'm just trying to understand this* 

x − 2s =  
x + 2s =  

 

 

2.) Can you explain in writing how to find the quartiles and solve it? Can you provide everything you know about it please, that would be helpful 

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We have to find the 2-σ limits in this problem.

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