1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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:

You might be interested in
Y'all, please help a girl out. ಥ_ಥ This problem is driving me nuts, but it's simple but I can't get the answer and that's why I'
elixir [45]

Answer:

The perimeter is 22.

Step-by-step explanation:

If you turn this shape into a rectangle, the perimeter doesn't change.

The width is given, it is 7.5. The height is BC+DE = 3.5

Then the perimeter is twice the width plus twice the height:

7.5*2 + 3.5*2 = 15+7 = 22

8 0
2 years ago
Construct x such that a/x= x/b
jenyasd209 [6]
\frac{a}{x} =  \frac{x}{b}

From there we can see that because x equals both to a and b, it must be that a = b.
8 0
3 years ago
I have to do Decompose fractions and my problem is 3 over 7 what do I do?
mart [117]
Just simplify them to a decimal by dividing the numerator by the denominator. 
4 0
3 years ago
In 1992 there was an earthquake at Little Skull Mountain, Nevada, measuring 5.5 on the Richter scale. In 1994 there was an earth
V125BC [204]
I have to think this through.... I will get back later 2.222
6 0
3 years ago
What would an equation be if a line passes through (7, -7) and (7, -1)
Ksivusya [100]

Answer:

hope you will understand my handwriting and if it was helpful for you then plz mark me as brainliest

4 0
2 years ago
Other questions:
  • Name something that often has an inscription and describe what it would say
    6·1 answer
  • How many cubic blocks with a side length of 1/8 inch are needed to fill a rectangular prism with a length, width, and height of
    14·1 answer
  • A line connecting a vertex of a scalene triangle with the midpoint of the opposite side is the
    7·1 answer
  • What is an isosceles scalene and equadrilateral triangle
    7·2 answers
  • Someone who is good with algebra i equations and inequalities?
    8·1 answer
  • What does m = in m/6 + 8=13 with work shown
    7·1 answer
  • If carbon dioxide, methane, and water vapor were not in the atmosphere, then
    7·1 answer
  • For which points is the Y- coordinate less than - 1.5?
    6·1 answer
  • What is 17.4% of 8350
    10·1 answer
  • Find the length of the missing side of the right triangle.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!