Asked by josh
The Following Table gives the sales for the Sasquatch Men's Shoe store:
Shoe Size , Frequency (number of pairs sold)
4 , 8
5 , 12
6 , 31
7 , 50
8 , 58
9 , 46
10 , 37
11 , 14
12 , 11
1)determine the mean for the distribution, correct to 2 decimal places.
2) Determine the standard deviation, correct to 2 decimal places .
3) set up the frequency graph for the data. does the distribution appear to be normal?
Answers
                    Answered by
            Ms. Sue
            
    What don't you understand about these problems?
    
                    Answered by
            josh
            
    apply the formula for the given data.
    
                    Answered by
            josh
            
    to find the mean, would i go 4x8x5x12x6x31x7x50x8x58...... / 100 ?
    
                    Answered by
            Ms. Sue
            
    No.  Don't include the shoe size in the mean.
Add the frequencies. Divide the sum by 9 to find the mean.
    
Add the frequencies. Divide the sum by 9 to find the mean.
                    Answered by
            josh
            
    267?
9
=29.666
    
9
=29.666
                    Answered by
            Ms. Sue
            
    Yes.  Rounded to two decimal places its 29.67
    
                    Answered by
            josh
            
    Thank you, for this question? determine the standard deviation, correct to 2 decimal places.
    
                    Answered by
            Ms. Sue
            
    Study this site to learn how to find the standard deviation.
http://www.mathsisfun.com/data/standard-deviation.html
    
http://www.mathsisfun.com/data/standard-deviation.html
                    Answered by
            josh
            
    is it 5.44 ?
    
                    Answered by
            Ralph Pinkert
            
    Math is trash 
    
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