Hi could someone help me with this question
I already found that a) is 21/4 and c) is 297/48 but how do you find b) for Pr(X<m)
Thanks
Here is your sample space:
$\{(h,1),~ (h,2),~(h,3),~(h,4),~(h,5),~(h,6),~(t,2),~(t,4),~( t,6),~(t,8),~(t,10),~(t,12)\}$
$\mathscr{P}(X=1)=\dfrac{1}{12}$ WHY?
$\mathscr{P}(X=2)=\dfrac{2}{12}$ WHY?
Now YOU fill out this table.
$\begin{array}{*{20}{c}}
{\mathcal{P}(X = ?)}&|&{\_\_\_} \\
\hline
{\mathcal{P}(X = 1)}&|&{\_\_\_} \\
{\mathcal{P}(X = 2)}&|&{\_\_\_} \\
{\mathcal{P}(X = 3)}&|&{\_\_\_} \\
{\mathcal{P}(X = 4)}&|&{\_\_\_} \\
{\mathcal{P}(X = 5)}&|&{\_\_\_} \\
{\mathcal{P}(X = 6)}&|&{\_\_\_} \\
{\mathcal{P}(X = 8)}&|&{\_\_\_} \\
{\mathcal{P}(X = 10)}&|&{\_\_\_} \\ {\mathcal{P}(X = 12)}&|&{\_\_\_} \\
\end{array}$