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Korolek [52]
3 years ago
8

URGENT HELP PLEASE.

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0
W + 2w = 60

this equation is wrong
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The number of typing errors made by a typist has a Poisson distribution with an average of three errors per page. If more than t
damaskus [11]

Answer:

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

Poisson distribution with an average of three errors per page

This means that \mu = 3

What is the probability that a randomly selected page does not need to be retyped?

Probability of at most 3 errors, so:

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

In which

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-3}*3^{0}}{(0)!} = 0.0498

P(X = 1) = \frac{e^{-3}*3^{1}}{(1)!} = 0.1494

P(X = 2) = \frac{e^{-3}*3^{2}}{(2)!} = 0.2240

P(X = 3) = \frac{e^{-3}*3^{3}}{(3)!} = 0.2240

Then

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0498 + 0.1494 + 0.2240 + 0.2240 = 0.6472

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

3 0
2 years ago
Quad Enterprises is considering a new three-year expansion project that requires an initial fixed asset investment of $2.38 mill
Angelina_Jolie [31]

Step-by-step explanation:

By using Ms Excel you should do this problem.

Kindly check the attachment for solution and cell reference for the clear understanding.

6 0
3 years ago
Can you guys help me?
Simora [160]
8 if not then i’m sorry
8 0
3 years ago
The cost of a school banquet is $50+14n, where n is the number of people attending. What is the cost for 26 people?
Svet_ta [14]

Answer:

414

Step-by-step explanation:

n is our variable, so substitute n for 26.

50 + (14*26)

264 + 50 = 414



8 0
3 years ago
5 hundreds times 10= Hundreds =
sattari [20]
500*500*500*500*500*500*500*500*500*500 that will = 50,000
3 0
3 years ago
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