Answer:
0.83
Explanation:
Since the probability P(Z > a) = 0.204< 0.5, 'a' must be lying on the right of zero. Draw the graph.
Find P(0 < Z < a).
[tex]\begin{gathered} P(0a) \\ =0.5-0.204 \\ =0.296 \end{gathered}[/tex]
Find 'a' from the standard normal table.
From the table, P(0 < Z < 0.83) = 0.2967. Thus, 'a' approximately equals 0.83.
