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kap26 [50]
3 years ago
7

In Mr.Martinez's sixth period class, there are 8 boys and 12 girls. what is the probability of randomly selecting a girl?

Mathematics
2 answers:
tresset_1 [31]3 years ago
6 0
Girls=12
Boys=8
Total students=8+12=20

Probability of girls=number of girls/total number of students=12/20=6/10=60%


Answer=60%
Murljashka [212]3 years ago
4 0
The probability of choosing a girl is 12/20
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Answer:

(–1, 1)  and (4, –2)

Step-by-step explanation:

we know that

The vertex of the right angle of the triangle could be situated at a point with the same x-coordinate of point A and the same y-coordinate of point B or at a point with the same x-coordinate of point B and the same y-coordinate of point A

we have

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a point with the same x-coordinate of point B and the same y-coordinate of point A is  (-1,1)

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3 years ago
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Artemon [7]

Answer:

The number of observations in the data set expected to be below a value of 231 is of 4793.

Step-by-step explanation:

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68% of the measures are within 1 standard deviation of the mean.

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In this problem, we have that:

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So 231 is three standard deviations above the mean.

Of the 50% of observations below the mean, all are below 231.

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So, the proportion of observations below 231 is:

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2 years ago
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3 years ago
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Answer:

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