Please help wuth math 25 points

432566 10.5.623467.14,5<br><br> 4. What is the 1s (lower) quartile of the data set?

egoroff_w [7]

Answer:

I feel sorry that looks hard. see how do you like it. waiting for an answer and then someone finally answers. and there being a smart Butt

Step-by-step explanation:

4 0

3 years ago

Inquiries arrive at a record message device according to a Poisson process of rate 15 inquiries per minute. The probability that

zloy xaker [14]

Answer:

0.0498 = 4.98%

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 time interval.

Inquiries arrive at a record message device according to a Poisson process of rate 15 inquiries per minute.

Each minute has 60 seconds.

So a rate of 1 inquire each 4 seconds.

The probability that it takes more than 12 seconds for the first inquiry to arrive is approximately

Mean of 1 inquire each 4 seconds, so for 12 seconds $\mu = \frac{12}{4} = 3$

This probability is P(X = 0).

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

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

5 0

2 years ago

Here is a picture of a circle. Each square represents 1 square unit.

Fynjy0 [20]

Answer:

No picture?

Step-by-step explanation:

i need a picture to anwser

8 0

2 years ago

Is the given function phi(x) = x^2 - x^-1 an explicit solution to the linear equation d^2y/dx^2 - 2/x^2 y = 0? Circle your answe

mart [117]

Answer:

Yes

Step-by-step explanation:

We are given that a function $\phi(x)=x^2-x^{-1}$

We have to find that given function is an explicit solution to the linear equation

$\frac{d^2y}{dx^2}-\frac{2}{x^2}y=0$

If given function is an explicit solution of given linear equation then it satisfied the given differential equation

Differentiate w.r.t x

Then we get $\phi'(x)=2x+x^{-2}$

Again differentiate w.r.t x

Then we get

$\phi''(x)=2-\frac{2}{x^3}$

Substitute all values in the given differential equation

$2-\frac{2}{x^3}-\frac{2}{x^2}(x^2-x^{-1})$

= $2-\frac{2}{x^3}-2+\frac{2}{x^3}=0$

Hence, given function is an explicit solution of given differential equation.

Therefore, answer is yes.

3 0

2 years ago

The graph models the cost of a cheese pizza with extra toppings at two different restaurants. According to the graph, about how

Greeley [361]

Hey - I need the graph to be able to help you. If you're on a computer, and it's a PC, you can use the snipping tool found in the start menu. Snip the graphs, then copy and paste them into a new question. If you're on a mac, command+shift+4 will get you a screenshot. Screenshot the graphs, go to finder, go to desktop, find your screenshot, then copy and paste it into a new question. :)

Sorry I can't help but I need the graph. :)

8 0

3 years ago

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