Consider the following stem-and-leaf plot. Each leaf represents the hundredths digit.

8.2 |117

8.3 |22

8.4 |2399

8.5 |

8.6 |4

(a) Find the mean.

(b) Find the median.

(c) Find the sample standard deviation

(d) Using the Empirical Rule, approximately 95% of the data values are between what two values?

(e) Stat 300 students were asked, "What is your height in inches?" The data is shown below.

Height Data-

67.01,63,68,64,68,61,67,71,71,68.4,68,63,62,65,64,75,65,71,65,60,66,60,66,68,69,59,63,66,64,70,68.9,62,61,62,65,63,74,63,68,40,61,60,69,64,64.55,67,60,63,57,69,66,63,60,61,62,60,60,70,60,73.2,66,63,64,64,63,68,65,61,60.5,68,74,62,65,63,62,55,63,68,68,63,68,61,64,63,61,67,68,63,65,61,62,68,63,61,63,73,62,60,62,72,63,67,52,61,64,60,64,60,60,66,71,64,66,73,66,66,63,70,64,65,74,65,66,67,65,65,70,60,60,60,72,66,64,59,63,61,67,60,72,65,60,65,62,63,64,71

Using the Empirical Rule, approximately 68% of the data values are between what two values?