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3 years ago

Multiply (x + 3)(x - 2)

Mathematics

2 answers:

Tju [1.3M]3 years ago

6 0

Answer:

Step-by-step explanation:

(X+3)(x-2)

3x-2x

Ratling [72]3 years ago

6 0

Answer:

=x2+x−6

Step-by-step explanation:

(x+3)(x−2)

=(x+3)(x+−2)

=(x)(x)+(x)(−2)+(3)(x)+(3)(−2)

=x2−2x+3x−6

=x2+x−6

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1 year ago

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2 years ago

At an outpatient mental health clinic, appointment cancellations occur at a mean rate of 1.5 per day on a typical Wednesday. Let

Kamila [148]

Answer:

a) Cancellations are independent and similar to arrivals.

b) 22.31% probability that no cancellations will occur on a particular Wednesday

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

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This means that $\mu = 1.5$

(a) Justify the use of the Poisson model.

Each wednesday is independent of each other, and each wednesday has the same mean number of cancellations.

So the answer is:

Cancellations are independent and similar to arrivals.

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This is P(X = 0).

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22.31% probability that no cancellations will occur on a particular Wednesday

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3 years ago