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inna [77]
3 years ago
12

I just need 6, 7, 8, 9, and 10. Please help me if you know how to do this..

Mathematics
1 answer:
goblinko [34]3 years ago
7 0

Answer:

Step-by-step explanation:

#6  

a       n

---- = ----    Solve for a.  Note that if we multiply both sides of this equation by

m       p                                     n

                  m, we get a = m * ----

                                                  p

                                                                                    m*n

                    and this simplifies to a = mn/p or  a = ---------

                                                                                       

#7     Solve mx = np for x.  We want to isolate x on the left side.  Dividing

both sides by m isolates x on the left and adds the divisor m on the right:

                            np

mx = np  =>  x = ------

                              m

#8    Solve c - x = d + r  for x       We want -x alone on the left side.  Accomplish this by subtracting c from both sides, obtaining:

-x = d + r - c.       Now multiply both sides by -1, obtaining x = -d - r + c

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22% of all resumes received by a corporation for a management position are from females. 18 resumes will be received tomorrow.
Vladimir79 [104]

Answer:

5.80% probability that exactly 1 resume will be from females.

Step-by-step explanation:

For each resume received by the corporation, there are only two possible outcomes. Either they are from a female, or they are not. The probability of a resume received being from a female is independent from other resumes. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

22% of all resumes received by a corporation for a management position are from females.

This means that p = 0.22

18 resumes will be received tomorrow.

This means that n = 18

What is the probability that exactly 1 resume will be from females?

This is P(X = 1).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{18,1}.(0.22)^{1}.(0.78)^{17} = 0.0580

5.80% probability that exactly 1 resume will be from females.

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Answer:

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Step-by-step explanation:

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