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4 years ago

PLEASSSSSSEEEE HHHHHEEEELP AAAASSSAP The box plots show the weights, in pounds, of the dogs in two different animal shelters.

Mathematics

2 answers:

Zinaida [17]4 years ago

6 0

Answer:

Shelter A

Step-by-step explanation:

gogolik [260]4 years ago

3 0

Answer:

it is "a" because i did it on edge

Step-by-step explanation:

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A certain kind of sheet metal has, on average, 3 defects per 18 square feet. Assuming a Poisson distribution, find the probabili

Fofino [41]

Answer:

75.8% probability that a 31 square foot metal sheet has at least 4 defects.

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.

In this problem, we have that:

3 defects per 18 square feet.

So for 31 square feet, we have to solve a rule of three

3 defects - 18 square feet

x defects - 31 square feet

$18x = 3*31$

$x = \frac{31*3}{18}$

$x = 5.17$

So $\mu = 5.17$

Assuming a Poisson distribution, find the probability that a 31 square foot metal sheet has at least 4 defects.

Either it has three or less defects, or it has at least 4 defects. The sum of the probabilities of these events is decimal 1.

$P(X \leq 3) + P(X \geq 4) = 1$

We want $P(X \geq 4)$

$P(X \geq 4) = 1 - P(X \leq 3)$

In which

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

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

$P(X = 0) = \frac{e^{-5.17}*(5.17)^{0}}{(0)!} = 0.0057$

$P(X = 1) = \frac{e^{-5.17}*(5.17)^{1}}{(1)!} = 0.0294$

$P(X = 2) = \frac{e^{-5.17}*(5.17)^{2}}{(2)!} = 0.0760$

$P(X = 3) = \frac{e^{-5.17}*(5.17)^{3}}{(3)!} = 0.1309$

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0057 + 0.0294 + 0.0760 + 0.1309 = 0.242$

Finally

$P(X \geq 4) = 1 - P(X \leq 3) = 1 - 0.242 = 0.758$

75.8% probability that a 31 square foot metal sheet has at least 4 defects.

8 0

4 years ago

Can someone help pls

lora16 [44]

I got 7.1 x 10^(-11) but it's been a few years so I could've done it wrong

5 0

4 years ago

Ashley is doing some math exercises on a website called Khon Academy. In Khon Academy, you have to get at least 70% of the probl

Flauer [41]

Answer:

q>=2

Step-by-step explanation:

if she has 3 out of 7 correct she only needs 2 more right. 70% of 7 needs to be 5 or more 5-3=2

8 0

3 years ago

Read 2 more answers

Evalue 6C4. A) 1/30 B)5 C) 15 D) 360

Margarita [4]

6C4 = 6!/(4!2!)= 720/(2*24)=15

7 0

3 years ago

An account earns 10% annual compound interest. The amount in the account after t years is equal to the principal times the expre

Katarina [22]

Assuming that means 1.10^t:

0.10 is for years. To get months divide by 12.
0.10/12 = 0.0083333...
And (1+0.083333...) = 1.0833333. (You will have to multiply t by 12 also to get it in terms of months)
(1.0833333)^12t

7 0

4 years ago