a) Consider a t distribution with 21 degrees of freedom. Compute P( ≥ t −1.92) = Round your answer to at least three decimal places. (b) Consider a t distribution with 2 degrees of freedom. Find the...

a) Consider atdistribution with 21 degrees of freedom.

ComputeP(≥t−1.92) =

Round your answer to at least three decimal places.

(b) Consider at distribution with 2 degrees of freedom. Find the value of

c such thatP(−ct c)=0.90

c=