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kiruha [24]
2 years ago
14

Which statement is true? the probability of randomly selecting a student who has a favorite genre of drama and is also female is

about 17 percent. event f for female and event d for drama are independent events. the probability of randomly selecting a male student, given that his favorite genre is horror, is startfraction 16 over 40 endfraction. event m for male and event a for action are independent events.
Mathematics
1 answer:
tankabanditka [31]2 years ago
7 0

The correct statement is that the probability is B. Event F for female and event D for drama are independent events.

<h3>What are independent events?</h3>

It should be noted that two events are independent when the occurence of one doesn't affect the probability of another one occuring.

The probability of females will be:

= 3/5 = 0.6

The probability of drama will be:

= 40/240 = 0.167

In this case, they're both independent.

Learn more about probability on:

brainly.com/question/24756209

#SPJ4

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sukhopar [10]

Answer:

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Step-by-step explanation:

In this case I would immediately rewrite n² - 2n - 5 = 10 as

n² - 2n                  = 10 + 5 = 15.

To complete the square:  Identify the coefficient of n (it is -2). Halve that, obtaining -1, square this result, and then add the outcome (1) to and subtract the outcome (1) to n² - 2n:

n² - 2n  <em>+ 1 - 1   </em>             = 15

Next, rewrite n² - 2n  + 1 as the square of a binomial:

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Finally, take the square root of both sides:

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so that the roots are n = 1 + √15 and n = 1 - √15

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I hope it helps, Regards.
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