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2 years ago

Jonah is going to the hardware store for his Uncle Frederick. He needs to buy 4 yards of electrical wire

Mathematics

1 answer:

mestny [16]2 years ago

5 0

Answer:

13 gallons

Step-by-step explanation:

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Unknown to a medical researcher, 6 out of 25 patients have a heart problem that will result in death if they receive the test dr

Fiesta28 [93]

Using the hypergeometric distribution, it is found that there is a 0.0002 = 0.02% probability that exactly 6 patients will die.

<h3>What is the hypergeometric distribution formula?</h3>

The formula is:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

The values of the parameters for this problem are:

N = 25, k = 6, n = 8.

The probability that exactly 6 patients will die is P(X = 6), hence:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}$

$P(X = 6) = h(6,25,8,6) = \frac{C_{6,6}C_{19,2}}{C_{25,8}} = 0.0002$

0.0002 = 0.02% probability that exactly 6 patients will die.

More can be learned about the hypergeometric distribution at brainly.com/question/24826394

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8 0

1 year ago

Write 7/14 • (-7/12) in lowest terms

Marizza181 [45]

The final answer should be -49/168.

3 0

3 years ago

Melinda rents paddle boats down at the pier. She uses 5.5 feet of nylon rope to tie off each boat. She started with 80 feet of r

Alina [70]

B. At most 26 is the answer

7 0

2 years ago

5.1) A piece of fish, initially of mass 2.4 kg, is cooked and subsequently has mass 2.1 kg.

Oduvanchick [21]

Answer:

12.5 % decrease

Step-by-step explanation:

To find the percent loss

Take the original amount and subtract the new amount

2.4 -2.1 = .3

Divide by the original amount

.3/2.4 = .125

Multiply by 100 to change to a percent

12.5 %

This is the percent decrease

5 0

3 years ago

What is the volume if the density of an object is 3.0g/mL and the mass is 15.0g?

adelina 88 [10]

The volume would be 5 because in order to find volume you need to divide mass over density. V=m/d

3 0

2 years ago