Answer: 0.45
Step-by-step explanation:
From the given table, the number students have brown hair = [tex]10+8=18[/tex]
The total number of students =[tex]4+5+4+6+10+8+2+1=40[/tex]
Now, the probability that a student has brown hair is given by :-
[tex]P(Br)=\frac{\text{Students with brown hair}}{\text{Total students}}\\\\\Rightarrow\ P(Br)=\frac{18}{40}=0.45[/tex]
Hence, the probability that a student has brown hair is 0.45
