+546 Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth.
946, 726, 956, 519, 104, 415, 428, 457, 614, 201, 772, 801
| A. mean = 578.3; standard deviation = 68572.4 | |
| B. mean = 566.5; standard deviation = 261.9 | |
| C. mean = 566.5; standard deviation = 68572.4 | |
| D. mean = 578.3; standard deviation = 261.9 |
+4473 Oh, yes, for the standard deviation...after you divide, you end up with the variance. So, you have to do the square root to find the deviation.
+4473 For the mean, all you have to do is add all the numbers and divide by the # of values listed (in this case, 12).
For the standard deviation, subtract each of the values by the mean and square them. Then, add all the results and divide by 12.
You can do this Nataszaa!! 
+4473 Oh, yes, for the standard deviation...after you divide, you end up with the variance. So, you have to do the square root to find the deviation.
