harameyonce
contestada

Suppose that 1/2 of the children in preschool are scared of snakes, 1/3 are scared of spiders, and 1/12 are scared of snakes and spiders.

1. What fraction of those who are scared of spiders are also scared of snakes?

A) 1/2
B) 1/3
C) 1/4
D) 1/6

2. What fraction of those who are scared of snakes are also scared of spiders?

A) 1/2
B) 1/3
C) 1/4
D) 1/6

Respuesta :

carlosego

Answer:

1. C)

2. D)

Step-by-step explanation:

We know that:

1/3 is afraid of spiders

1/12 fears spiders and snakes

Then, the proportion of children who fear spiders and also snakes is calculated as:

[tex]\frac{\frac{1}{12}}{\frac{1}{3}} = \frac{1}{4}[/tex]

Option C)

Of the 1/3 of children who fear spiders, 1/4 of them also fear snakes.

Now:

1/2 is afraid of the serientes

1/12 fears spiders and snakes

Then, the proportion of children who fear spiders and also snakes is calculated as:

[tex]\frac{\frac{1}{12}}{\frac{1}{2}} = \frac{1}{6}[/tex]

Option D)

Of the 1/2 of children who fear snakes, 1/6 of them also fear spiders

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