jate
Find the standard deviation of the data summarized in the given frequency distribution.
9)The test scores of 40 students are summarized in the frequency distribution below. Find the
standard deviation.
Score
50-59
60-69
70-79
80-89
90-99
Students
5
7
9
10
9
A)13.4
B)12.7
C)12.1
D) 14.1