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Komok [63]
2 years ago
9

You have been assigned to determine whether more people prefer Coke or Pepsi. Assume that roughly half the population prefers Co

ke and half prefers Pepsi. How large a sample do you need to take to ensure that you can estimate, with 95% confidence, the proportion of people preferring Coke within 3% of the actual value?
Mathematics
1 answer:
saveliy_v [14]2 years ago
3 0

You have to add.

Step-by-step explanation:

I'm trash at math.

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Assume that during each second, a job arrives at a webserver with probability 0.03. Use the Poisson distribution to estimate the
Savatey [412]

Answer:

The probability that at lest one job will be missed in 57 second is=1- e^{-1.71} =0.819134

Step-by-step explanation:

Poisson distribution:

A discrete random variable X having the enumerable set {0,1,2,....} as the spectrum, is said to be Poisson distribution.

P(X=x)=\frac{e^{-\lambda t}({-\lambda t})^x}{x!}  for x=0,1,2...

λ is the average per unit time

Given that, a job arrives at a web server with the probability 0.03.

Here λ=0.03, t=57 second.

The probability that at lest one job will be missed in 57 second is

=P(X≥1)

=1- P(X<1)

=1- P(X=0)

=1-\frac{e^{-1.71}(1.71)^0}{0!}

=1- e^{-1.71}

=0.819134

6 0
3 years ago
Can you exchange the coordinates of points ( x 1, y 1) and ( x 2, y 2) in the distance formula and still find the correct distan
notka56 [123]

Answer:

yes

Step-by-step explanation:

As an example

(x₁, y₁ ) = (1,2) and (x₂, y₂ ) = (5,3), then

d = \sqrt{(5-1)^2+(3-2)^2} = \sqrt{4^2+1^2} = \sqrt{16+1} = \sqrt{17}

Now let (x₁, y₁ ) = (5,3) and (x₂, y₂ ) = (1,2), then

d = \sqrt{(1-5)^2+(2-3)^2} = \sqrt{(-4)^2+(-1)^2} = \sqrt{16+1} = \sqrt{17}


3 0
3 years ago
In quadrilateral ABCD, m∢A = 80, m∢B = 2x, m∢C = x, and m∢D=4x. Find x.
valkas [14]

36 degree :

Step-by-step explanation:

if the value of angleA= x , angleB=2x , angle C=3x and angle D=4x . the value of x is 36 degree

3 0
2 years ago
PLEASE HELPPPPPPPPPPPPPP
gregori [183]

Answer:

False

Step-by-step explanation:

To find the inverse of a function, switch the variables and solve for y.

The inverse of f(n)=-(n+1)^3:

y=-(n+1)^3

n=-(y+1)^3

\sqrt[3]{n} =-(y+1)

\sqrt[3]{n} =-y-1

\sqrt[3]{n} +1=-y-(\sqrt[3]{n} +1)=y

-\sqrt[3]{n} -1=y

5 0
2 years ago
Read 2 more answers
Help please homework due tomorrow and I don't know how to do this
Furkat [3]
Number 1 is 0.2 and 0.4
number 2 is 0.53 and 0.56
number 3 is on the 0.3
number 4 is 1/3
number 5 is a little bit before the 0.7 mark
number 6 is 62/100
4 0
3 years ago
Read 2 more answers
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