SOLUTION: Consider the sample S = {101.1, 102.0, 103.2, 99.7} which represent mean temperatures in Fahrenheit of four patients over a particular period of time. Calculate the sample mean ¯x

Algebra ->  Probability-and-statistics -> SOLUTION: Consider the sample S = {101.1, 102.0, 103.2, 99.7} which represent mean temperatures in Fahrenheit of four patients over a particular period of time. Calculate the sample mean ¯x      Log On


   



Question 1173183: Consider the sample S = {101.1, 102.0, 103.2, 99.7} which represent mean temperatures in Fahrenheit of four patients over a particular period of time. Calculate the sample mean ¯x and the sample standard deviation σx of the data set S.
Answer by Boreal(15235) About Me  (Show Source):
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Mean is 101.5. Add them and divide by 4.
sd is 1.48
Sample sd is s and divide the sum of squared deviations from the mean
0.4^2
0.5^2
1.7^2
1.8^2
and that sum is 6.54
Divide by 3 to get 2.18
sqrt (2.18)=1.476