What is the age distribution of adult shoplifters ( 21 years of age or older) in supermarkets ? The following is based on information taken from the national retail federation.  A random of 895 incidents of shoplifting gave the following age distribution.  Estimate the mean age, sample variance, and sample standard deviation for the shoplifters.  For class 41 and over use 45.5 as the class midpoint.  ( Round your answer to one decimal place)   age range (years)   21-30        31-40         41 and over # of shoplifters         253           367              275

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What is the age distribution of adult shoplifters ( 21 years of age or older) in supermarkets ? The following is based on information taken from the national retail federation.  A random of 895 incidents of shoplifting gave the following age distribution.  Estimate the mean age, sample variance, and sample standard deviation for the shoplifters.  For class 41 and over use 45.5 as the class midpoint.  ( Round your answer to one decimal place)

 

age range (years)   21-30        31-40         41 and over

# of shoplifters         253           367              275

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