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boyakko [2]
3 years ago
6

In a group of 1,200 people 252 have blue eyes, 132 have green eyes, and 348 have black eyes. What is the probability that a pers

on chosen at random from this group has blue eyes?
Mathematics
2 answers:
docker41 [41]3 years ago
3 0

252/1200

or

21/100 simplified

iris [78.8K]3 years ago
3 0

Answer:

21/100

Step-by-step explanation:

the probability is given by the amount of people with blue eyes divided by the total amount.

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Answer:

She needs a grade of 71 on her next text.

Step-by-step explanation:

Mean of a data-set:

The mean of a data-set is the sum of all values in the data-set divided by the number of values.

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There are 4 tests.

What score does she need on her next test so that her average (mean) is 81?

We have to find x when the mean is 81. So

\frac{82 + 78 + 93 + x}{4} = 81

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She needs a grade of 71 on her next text.

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