Following are the playback time, in hours, for a sample of MP3 players. Calculate the sample standard deviation. 23, 29 , 34, 18, 25, 21, 35 , 28 Write only a number as your answer. Round to two decimal places (for example: 8.32)

Please do A and B

Here are the weights (in pounds) of a sample of 9 male eleventh graders.  158, 161, 161, 165, 174, 153, 154, 155, 160   find the median weight of these students

An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes were $406, $414, $483, and $217 O . Compute the mean, median, and mode cost of repair. Compute the mean cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The mean cost of repair is $ (Round to the nearest cent as needed.) B. The mean does not exist. Compute the median cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The median cost of repair is $ (Round to the nearest cent as needed.) B. The median does not exist. Compute the mode cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mode cost of repair is $ -(Round to the nearest cent as needed.) B. The mode does not exist.