Which statement correctly describes the relation between a

t-distribution and a standard normal distribution?

a) The standard normal distribution has more b) The standard normal distribution is

area in the tails than the t-distribution.

centered at 0, while the t-distribution is

centered at (n-1).

c The t-distribution has a smaller standard O d) As the sample size increases, the standard

deviation than the standard normal

deviation of the t-distribution decreases.

distribution.