Answer:
I got this same question on my quiz, so I added the other two questions as well, with their answers.
Explanation:
1. What is the standard deviation of the data set? Round to the nearest tenth if needed.
2, 4, 7, 8, 9
Answer: 2.9
2. Data Set A has a mean of 215 and a standard deviation of 35. Data Set B has a mean of 400 and a standard deviation of 12. Which data set is more spread out?
Answer: Data Set A
3. What is the standard deviation of a data set whose values are all the same?
Answer: 0