Use the two-way frequency table at the right to find the probability P(8th-grade boy).P(8th-grade boy) = =(Simplify your answer.)

It is given that the probability of 8th grade boy needs to be calculated.
The probability is given by:
[tex]P(8th\text{ grade boy)=}\frac{\text{ number of 8th grade boys}}{\text{total}}=\frac{9}{50}=0.18[/tex]