Question

The standard deviation of the midterm scores at ucb for stats 2 is 50 points. the teacher takes a sample of 100 students' scores to estimate the mean score of students in your class. what is the standard deviation of the sample mean?

Answer 1

The measure standard deviation quantifies the amount of variation or dispersion of a set of data values.The standard deviation is the square root of the variance.
The standard deviation in this case is 50/ sqrt(100)= 50/10=5.