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kipiarov [429]
3 years ago
8

PLEASE AWNSER THIS SOON AS YOU CAN

Mathematics
1 answer:
juin [17]3 years ago
4 0

Using the concept of probability, it is found that:

a) 0.26 = 26% probability that a randomly selected person from this group likes country music.

b) 0.28 = 28% probability that a randomly selected person from this group likes rock music and is from the North.

c) 0.27 = 27% probability that a randomly selected person from this from this group likes oldies given that they are from the South.

d) P(R) = 0.44.

e) P(S) = 0.53.

----------------------------------

  • A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
  • In this problem, these number of outcomes are drawn from the two-way table.

Item a:

  • Out of 312 people, 81 like country music.

Thus:

p = \frac{81}{312} = 0.26

0.26 = 26% probability that a randomly selected person from this group likes country music.

Item b:

  • Out of 312 people, 88 like rock and are from the north.

Thus:

p = \frac{88}{312} = 0.28

0.28 = 28% probability that a randomly selected person from this group likes rock music and is from the North.

Item c:

  • 164 people from the South, of those 44 like oldies.

Thus:

p = \frac{44}{164} = 0.27

0.27 = 27% probability that a randomly selected person from this from this group likes oldies given that they are from the South.

Item d:

  • 138 people out of 312 like rock, thus:

P(R) = \frac{138}{312} = 0.44

P(R) = 0.44.

Item e:

  • 164 people out of 312 are from the South, thus:

P(S) = \frac{164}{312} = 0.53

P(S) = 0.53.

A similar problem is given at brainly.com/question/24161830

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