Mean, Standard deviation, median and variance?

75 78 10


85 95 56


45 91 80


72 82 75


79 76 84


63 88 68





a) mean


b) standard deviation


c) median


d) variance

Mean, Standard deviation, median and variance?
Just use an Excel spreadsheet to get the 4 values.





a. mean = 72.33


b. std dev = 19.8


c. median = 77


d. var = 392.12
Reply:a 70.6666667





c. 75.5





b. 19.02938904





i forgot what is variance
Reply:can u plz post this question on http://www.tutorbuddy.org i will help u with the answers