Question

We are going to calculate the standard deviation for the following sets of sample data 12,9,9,12,7. Fill in the table below. Fill in the difference of each data value from the mean,then the squared differences. calculate the standard deviation. x 12,9,9,12,7__ x-x __,__,__,__,__ total (x-x)2 __,__,__,__,__,__ Find the standard deviation and round off to 2 decimal place. ​

Answer 1

Answer : 1.939071943

Aswer : 1.94

calculating standard deviation using a scientific calculator CASIO. TAP MODE SETUP THEN PRESS OPTION 2 THEN OPTION 1 AND PUT YOUR DATA THEN PRESS AC ON YOUR CALCULATOR THEN PRESS SHIFT THEN PRESS PATTERN 1 THEN OPTION 4 THEN OPTION 3 FOR STANDARD DEVIATION OR OPTION 2 FOR MEAN