# How does a t distribution differ from a normal curve?

t distribution and normal curve are symmetric, uni-modal, bell shaped and have the mean of zero. The difference is that t-curve is has a higher variance, so it is more spread out. This spread depends on the degrees of freedom, $\setminus \nu$. For smaller value of $\setminus \nu$, t-distribution is more spread out, but as $\setminus \nu$ increases, the t-curve approaches normal curve asymptotically.