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.
It appears that data are missing. Please verify.
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?