Question: The scores of 5 students on a math test are: 85, 92, 78, 88, and 95. What is the standard deviation of these scores?
A) 6.15
B) 4.23
C) 7.25
D) 5.72
E) 3.58
Correct answer: A
Grade: 8 | Topic: Statistics and Probability | Difficulty: Medium | Standard: 8.SP.A.4