Mathematics Homework Help
Mathematics Homework Help. sample variance and sample standard deviation
Age range (years) 1-10, 11-20, 21-30, 31+ (use 35.5 as midpoint)
# of individuals in above groups: 36, 25, 20, 10.
15.9 is the mean. what is the sample variance and sample standard deviation? round answers to one decimal place.
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