# R program to illustrate
# variance of vector
  
# Create example vector
x <- c(1, 2, 3, 4, 5, 6, 7)   
  
# Apply var function in R 
var(x)                       
  
print(x)

 4.667

# R program to illustrate
# standard deviation of vector
  
# Create example vector
x2 <- c(1, 2, 3, 4, 5, 6, 7) 
  
# Compare with sd function
sd(x2)                          
  
print(x2)