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iving a test to a group of students, the grades and gender are summarized below ABCTotalMale6151435Female19112050Total25263485If one student is chosen at random,Find the probability that the student was NOT a male that got a "B". Round to at least 3 decimal places.

Sagot :

We need to find the following probability:

[tex]P(Female\text{ AND got a B\rparen}[/tex]

From the given table, we can see that there are 11 female student which got a B and the total number of students is 85:

Since the probability is defined as the number of favorable outcomes divided by the total number of outcomes, we have

[tex]P(Female\text{ AND got a B\rparen=}\frac{11}{85}=0.1294[/tex]

Therefore, by rounding to 3 decimal places, the answer is 0.129

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