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Rzqust [24]
2 years ago
9

Of police academy applicants, only 25% will pass all the examinations. suppose that 12 successful candidates are needed. what is

the probability that, by examining 20 candidates, the academy finds all of the 12 persons needed?
Mathematics
1 answer:
Genrish500 [490]2 years ago
8 0
The probability is 0.0008.

I used a binomial probability on this one, since there are two outcomes (either pass or fail); the events are independent (the probability of one person passing does not influence the probability of another passing); and there are a fixed number of trials (in this case, 20).

For binomial probabilities, we use the formula:
_nC_k=p^k*(1-p)^{n-k}

With our information, we have:

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Choose the question that has only one possible answer.
blondinia [14]

Answer:

A. How tall are you?

Step-by-step explanation:

The response given to a questions will usually depend on the type of question asked. We have the open ended and the close ended. depending on whether the question can be answered by a yes or no alternative.

The question how tall are you? Simply requires a phrase answer with the height of the person being asked. Such as 6 feets, 12 feets, etc.

The question, length of lizards in backyard and the height of students in class requires a range of values to express the height of the lizards and students.

5 0
3 years ago
What is the measurement, in degrees, of angle 1?
Lyrx [107]

Answer:

180 - 55 = angle 1

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3 0
3 years ago
Question 1: 3/4n+16=2-1/8n. Show work plzz for all i need help due tomorrow!!!
Bezzdna [24]
1) Multiply everything by 8. It clears the fractions.
 It gives you 6n + 128 =16 - n
You add the -n to the other side of the equation.
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7 0
2 years ago
Which property is shown? 4/5+(-4/5)=0
Aliun [14]

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8 0
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Please answer this correctly
bonufazy [111]

Answer:

The dependent variable is m

Step-by-step explanation:

A dependent variable is dependent on an independent variable. This variable is dependent on other variable that are measured . The dependent variable are expected to change as a result of the manipulation of the independent variables. Usually as the experiments changes the independent variable the dependent variable are observed and noted.

The independent variable is unaffected by the other variable you are measuring. The independent variable represent a quantity that is been manipulated in an experiment.

According to the question Jenny works as a server at Jefferson restaurant . The more table she is assigned to serve the more money she earns during a shift.

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7 0
3 years ago
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