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3 years ago

6

Use symbolic notation and fractions where needed. Give your answer in the form of comma separated list of i, j, k i, j, k compon

ents.) ∫ 4 0 <7t, 5t, −1cos(4t)>dt

1 answer:

Solnce55 [7]3 years ago

6 0

Answer: 96> 23t- (7t)

Step-by-step explanation:

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On a particular day, 112 of 280 passengers on a particular DTW-LAX flight used the e-ticket check-in kiosk to obtain boarding pa

Sonja [21]

Answer:

0.2348 = 23.48% probability that four will have used the e-ticket check-in kiosk to obtain boarding passes.

Step-by-step explanation:

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

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

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

In this question:

Population of 280, which means that $N = 280$

112 use e-ticket check-in kiosk, which means that $k = 112$

Sample of eight passengers means that $n = 8$

Find the approximate hypergeometric probability that four will have used the e-ticket check-in kiosk to obtain boarding passes.

This is P(X = 4). So

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 4) = h(4,280,8,112) = \frac{C_{112,4}*C_{168,4}}{C_{280,4}} = 0.2348$

0.2348 = 23.48% probability that four will have used the e-ticket check-in kiosk to obtain boarding passes.

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3 years ago

What is the value of the rational expression when x=-2?<br><br> -7<br> -9<br> 9<br> 7

STALIN [3.7K]

Answer:

9

Step-by-step explanation:

take the x and drop it down after that the - needs to become the postive with takes multiple and so then after tyat it needs to add the extra 1 bc if the 1

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4 years ago

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BartSMP [9]

The answer is 13.714 :)

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4 years ago

Karabo is training by running for the Comrades Marathon,he starts his training by running 40km per week.Each week he increases t

Maru [420]

Answer:

40 + (n-1)10

Step-by-step explanation:

Correct me if im wrong but im pretty sure this is it.

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3 years ago

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DochEvi [55]

Answer:

f(3) = 2

Step-by-step explanation:

f(3) = 2(3) - 4

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3 years ago