Respuesta :
Answer:
43.24% probability that the student will be a boy
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Desired outcomes:
Student being a boy.
8 boys from Wilmette
5 boys from Glencoe
3 boys from Winnetka
So [tex]D = 8+5+3 = 16[/tex]
Total outcomes:
All students
[tex]T = 8+4+10+5+3+7 = 37[/tex]
Probability:
[tex]p = \frac{D}{T} = \frac{16}{37} = 0.4324[/tex]
43.24% probability that the student will be a boy
Answer:
[tex]\frac{16}{37}\approx0.432[/tex]
Step-by-step explanation:
BOYS
- 8 boys from Wilmette
- 5 boys from Glencoe
- 3 boys from Winnetka
GIRLS
- 4 girls from Winnetka
- 10 girls from Wilmette
- 7 girls from Glencoe
Total Number of Boys n(B)= 8+5+3=16
Total Number of Girls, n(G)=4+10+7 =21
Total Number of students, n(S) =21+16 =37
If a student is called randomly to answer a question,
P(Student will be a boy)
[tex]=\frac{n(B)}{n(S)} \\=\frac{16}{37}\approx0.432[/tex]
