A population consists of all the weights of all defensive tackles on 's football team. They are: Johnson, 204 pounds; Patrick, 215 pounds; Junior, 207 pounds; Kendron, 212 pounds; Nicko, 214 pounds; and Cochran, 208 pounds. What is the population standard deviation (in pounds)?
Population variance = (Sum of squared deviation from the mean)/N. The mean is 210. Population variance = (36 + 25 + 9 + 4 + 16 + 4)/6 = 94/6 = 15.67. Population standard deviation is the square root of the population variance = 3.958.
Answer Anonymously
Copy Link
