Question

In a classroom, the probability that the teacher chooses a boy from 20 students is 0.45. How many students are not boys? Describe the likelihood of not choosing a boy.

Answer 1

C

Explanation:

i donut know?

Answer 2

If:


`(Boys)/(20) = 0.45`

Soon:

`(Boys)/(20) = 0.45 \to Boys = 20*0.45 \to \boxed{Boys = 9}`

Therefore: (It's not a boy)
Students = 20
Boys = 9
girls = ?


`Girls + Boys = Students`

`Girls + 9 = 20`

`Girls = 20 - 9`

`\boxed{Girls = 11}`

Answer: (Describe the likelihood of not choosing a boy)


`(11)/(20) = \boxed{\boxed{0.55}}\end{array}}\qquad\quad\checkmark`