norm,s,inv in r

norm, s, inv in R

# norm
x <- c(2, 4, 6, 8, 10)
mean_x <- mean(x)
sd_x <- sd(x)

# s
y <- c(1, 3, 5, 7, 9)
mean_y <- mean(y)
sd_y <- sd(y)

# inv
z <- c(3, 6, 9, 12, 15)
mean_z <- mean(z)
sd_z <- sd(z)