Homework Answers
>
s<-c(rep(0.22,4),rep(0.23,2),rep(0.24,2),rep(0.25,8),0.26,0.27,rep(0.28,3),0.29,rep(0.31,2),0.32,0.33,rep(0.35,4),rep(0.37,2),0.38,0.39,0.39,rep(0.42,4),rep(0.43,2),0.44,rep(0.45,2),0.47,0.47,0.49)
> mean(s)
[1] 0.3268085
> median(s)
[1] 0.31
So,
a) Mean = 0.3268
b) Median = 0.31
c) Mode = 0.25 (highest freq = 8)
d) 20th percentile = datapoint s.t. total 20% of data is less or equal to that value = 0.25
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