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Elementary,Middle School,High School,College,University,PHD
Teaching Since: | May 2017 |
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Questions Answered: | 66690 |
Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Grouped Data: Shoplifting 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 sample of 895 incidents of shoplifting gave the following age distribution:
Age range (years) |
21-30 |
31-40 |
41 and over |
Number of individuals |
260 |
348 |
287 |
Estimate the mean age, sample variance, and sample standard deviation for the shoplifters. For the class 41 and over, use 45.5 as the class midpoint.
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