Answer:
[tex]\frac{31}{39}[/tex]
Explanation:
The computation of the probability of the selected person is undergraduate or a female is shown below:
Total person in psychology lab
= Male doctoral students + female doctoral students + male undergraduates + female undergraduates
= 8 + 6 + 16 + 9
= 39
Now the probability would be
= (Female doctoral students + male undergraduates + female undergraduates) ÷ (Total persons)
[tex]=\frac{6}{39} + \frac{16}{39} + \frac{9}{39}[/tex]
= [tex]\frac{31}{39}[/tex]