SOLUTION: Answer the following about each data set. (Round to two decimal places where appropriate) Data set II: 3 5 8 7 9 a) The median of Data set II is: b) The interquartile

Algebra ->  Probability-and-statistics -> SOLUTION: Answer the following about each data set. (Round to two decimal places where appropriate) Data set II: 3 5 8 7 9 a) The median of Data set II is: b) The interquartile       Log On


   



Question 1133327: Answer the following about each data set. (Round to two decimal places where appropriate)
Data set II:
3 5 8 7 9
a) The median of Data set II is:

b) The interquartile range (IQR) of Data set II is from________to _________

c) The mean of Data set II is:

d) The standard deviation of Data set II is:

Answer by Boreal(15235) About Me  (Show Source):
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the mean is sum/5 or 32/5 or 6.4
the median is middle of ordered numbers 3/5/7/8/9 or 7
mean of lower half is first quartile or 4
mean of upper half is third quartile or 8.5
SD is sqrt (3.4^2+1.4^2+1.6^2+0.6^2+2.6^2)/4=2.41