ex3_1_1.R

x <- c(-0.68, -2.11,  2.39,  0.26,  1.46,  1.33,  1.03, -0.41, -0.33, 0.47)

mean(x)
var(x)
median(x)
diff(range(x)) # range returns the minimum and maximum of the vector x. To get the range, we must take the maximum minus the minimum. We do this using the function diff, which finds differences between consecutive elements in a vector.