All categories

4 years ago

Solve plz hurry need help

Mathematics

1 answer:

liraira [26]4 years ago

7 0

It is skewed right. Think of it as a mountain. It tilts to the right. If a skier was on it they would die if they went left because it’s a big drop. Hope this helps

You might be interested in

Internal Revenue Service

Kryger [21]

Answer:

I think You might have a typo or 2

7 0

3 years ago

Is 0.111... a repeating decimal, terminating decimal, or neither?

Ivahew [28]

It is a repeating decimal since .1111 goes on forever. =)

7 0

3 years ago

Read 2 more answers

Q1 ).The number of white corpuscles on a slide has a Poisson distribution with mean 4.5.

dybincka [34]

The most likely number of white corpuscles om a slide is 4 ,the probability of obtaining this number 4 is 0.190 , probability of obtaining at least two white corpuscles in total on the two slides is 0.999.

Attending to the first question

<h3>What is Poison Distribution ?</h3>

Poisson Distribution is used for an independent event to find its probability in a fixed interval of time .

Let X be the number of white corpuscles on a slide, then X~Pois(4.5)

a) We have to find the most likely number of white corpuscles on a slide , which means expected value of Poise(4.5)

The expected value of Poisson distribution with mean λ is equal to λ.

Therefore the expected value is 4.5.

the number of corpuscles cannot be non-integer,

To find the most likely number in one experiment,

determine it between 4 and 5.

In the common case P(X=k) when X~Poise(λ) is equal to $\frac {\lambda^{k}} {k!}}e^{-\lambda}$

, $\rm e^{-\lambda}$ is a constant in terms of k

so the point is to find out what is greater : ${\frac {4.5^4} {4!}}$ or ${\frac {4.5^5} {5!}}$

${\frac {4.5^5} {5!}}={\frac {4.5^4} {4!}} * {\frac {4.5} 5}$

${\frac {4.5} 5} < 1$

So, ${\frac {4.5^4} {4!}}$ is greater

So, the most likely number of white corpuscles om a slide is 4.

b) the probability of obtaining this number 4 is

P(X = 4)

= ${\frac {4.5^4} {4!}}e^{-4.5}=0.190$

c) Let Y be the total number of corpuscles on two screens.

$Y=X{\scriptscriptstyle 1}+X{\scriptscriptstyle 2}Y=X1+X2$ ,

where $X{\scriptscriptstyle 1}, X{\scriptscriptstyle 2}$ - number of corpuscles on the first and second slide respectively.

Then Y = Poise(4.5 + 4.5) = Poise(9)

the probability, correct to three decimals places of obtaining at least two white corpuscles in total on the two slides

The goal is to find P(Y ≥ 2)

Therefore the probability less than 2 will be subtracted from the total probability i.e. 1

P(Y ≥ 2 ) = 1 - P (Y=0) - P(Y=1)

= $1-{\frac {9^0} {0!}}e^{-9}-{\frac {9^1} {1!}}e^{-9}=1-10e^{-9}=0.999$

To know more about Poisson Distribution

brainly.com/question/17280826

#SPJ1

7 0

3 years ago

How do i solve this step by step to get my answer

polet [3.4K]

32. You love the 5t^-3 up to make it positive to get 7s5t^3

4 0

4 years ago

Read 2 more answers

A piece of string is 112 inches long. Isabel wants to cut it into 2 pieces so that one piece is three times as long as the other

lukranit [14]

Answer:28inches & 84inches

First, lets write an equation that fits the data given. The string is 112 inches long. When the two pieces are cut, the first piece will be three times as long as the second piece. If we use the variable, x, to represent the second piece, we can create the following equation...

112=3x+x

Now lets solve for x.

112=4x
divide both sides by 4
28 inches=x

Now we know that the second piece is 28inches long. Since the first piece is three times as long, simply multiply 28*3 and we'll know the length of the first piece.

28*3=84 inches
28+84=112

4 0

4 years ago