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Sagot :
To determine the probability that a randomly selected girl will have above-average grades, follow these steps:
1. Identify the Total Number of Girls:
From the table, the total number of girls is 38.
2. Identify the Number of Girls with Above-Average Grades:
From the table, the number of girls with above-average grades is 22.
3. Calculate the Probability:
The probability is computed by dividing the number of girls with above-average grades by the total number of girls. Thus, the probability [tex]\( P \)[/tex] is:
[tex]\[ P = \frac{\text{Number of girls with above-average grades}}{\text{Total number of girls}} = \frac{22}{38} \][/tex]
4. Convert the Fraction to a Decimal:
Simplifying [tex]\( \frac{22}{38} \)[/tex] results in:
[tex]\[ \frac{22}{38} \approx 0.5789 \][/tex]
Therefore, the probability that a randomly selected girl will have above-average grades is approximately 0.58.
So, the correct answer is:
C. 0.58
1. Identify the Total Number of Girls:
From the table, the total number of girls is 38.
2. Identify the Number of Girls with Above-Average Grades:
From the table, the number of girls with above-average grades is 22.
3. Calculate the Probability:
The probability is computed by dividing the number of girls with above-average grades by the total number of girls. Thus, the probability [tex]\( P \)[/tex] is:
[tex]\[ P = \frac{\text{Number of girls with above-average grades}}{\text{Total number of girls}} = \frac{22}{38} \][/tex]
4. Convert the Fraction to a Decimal:
Simplifying [tex]\( \frac{22}{38} \)[/tex] results in:
[tex]\[ \frac{22}{38} \approx 0.5789 \][/tex]
Therefore, the probability that a randomly selected girl will have above-average grades is approximately 0.58.
So, the correct answer is:
C. 0.58
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