str(Challeng)
attach(Challeng)
stem(temp)
summary(temp)
IQR(temp)
quantile(temp)
fivenum(temp)
stem(sort(temp)[-1])
summary(sort(temp)[-1])
IQR(sort(temp)[-1])
quantile(sort(temp)[-1])
fivenum(sort(temp)[-1])
par(mfrow=c(1,2))
qqnorm(temp)
qqline(temp)
qqnorm(sort(temp)[-1])
qqline(sort(temp)[-1])
par(mfrow=c(1,1))
detach(Challeng)
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