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$2$$\newline$$3$$\newline$$4$$\newline$$5$$\newline$$6$$\newline$$7$$\newline$$8$$\newline$$9$$\newline$$10$$\newline$$11$$\newline$$12$$\newline$On a popular app, users rate hair salons as $1,2,3,4$, or $5$ stars. Suppose a rating is randomly selected from all the ratings on the app. Let $X$ be the number stars of the selected rating. Here is the probability distribution of $X$.$\newline$\begin{tabular}{|c|c|c|c|c|c|}$\newline$\hline Value $x$ of $X$ & $1$ & $2$ & $3$ & $4$ & $5$ \\$\newline$\hline$P(X=x)$ & $0$.$25$ & $0$.$19$ & $0$.$09$ & $0$.$21$ & $0$.$26$ \\$\newline$\hline$\newline$\end{tabular}$\newline$For parts (a) and (b) below, find the probability that the randomly selected hair salon rating has the described number of stars.$\newline$(a) At most $2$:$\newline$(b) More than $3$:$\newline$$\square$