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Aliun [14]
3 years ago
6

A teacher surveyed his class about how many wore watches and how many wore rings. The Venn diagram shows her results. If a perso

n from the class is randomly selected, what is the probability that person wears a watch given that they wear a ring?
P( watch | ring )

A. 7/12
B. 1/6
C. 1/12
D. 2/7
URGENT PLEASE HELP
Mathematics
2 answers:
hichkok12 [17]3 years ago
7 0
I think it’s C I hope that helps
Savatey [412]3 years ago
4 0

Answer:

Step-by-step explanation:

Person who wears a watch + ring

Lets say the fraction of people wearing the rings is 1/X

Lets say the fraction of people wearing a watch is 2/y

The formula is multiplication for both (Key words: and)

The formula is add for one or the either (key words: or)

The question says that person wears a watch given that they wear a ring

It mean that they wear a watch + a ring.

THat mean multiplication!

Lets use the example: 1/x · 2/y = 2/xy

This makes 2/xy your answer for the example.

Now lets do another example:

Lets say the fraction of people wearing the rings is 1/3

Lets say the fraction of people wearing a watch is 2/3

Multiplication!!!!

1/3 x 2/3 = 2/9

This makes 2/9 your answer to this example!!!!

<h2><u><em>Hope I helped a lot!!!!!!!!!!!!!!!!!!</em></u></h2>
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