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4 years ago

Find the solution: 16x-18=2y 4x+9=y x= y=

Mathematics

1 answer:

faltersainse [42]4 years ago

3 0

Answer:

y=27,x=4.5

Step-by-step explanation:

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If we sample from a small finite population without replacement, the binomial distribution should not be used because

Nezavi [6.7K]

Using the hypergeometric distribution, it is found that there is a 0.0232 = 2.32% probability of getting exactly two winning numbers with one ticket.

<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.

For this problem, the parameters are given as follows:

N =A + B = 54, k = 4, n = 4.

The probability of getting exactly two winning numbers with one ticket is P(X = 2), hence:

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

$P(X = 2) = h(2,54,4,4) = \frac{C_{4,2}C_{50,2}}{C_{54,4}} = 0.0232$

There is a 0.0232 = 2.32% probability of getting exactly two winning numbers with one ticket.

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

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3 0

2 years ago

Order these values from smallest (A) to largest (F)

Flauer [41]

We need the values to answer this question

6 0

3 years ago

I will give Brainiest if you are right

svet-max [94.6K]

Answer:

Option D is the correct answer

4 0

3 years ago

Read 2 more answers

Evaluate the following: −3 − (−2). (5 points) Question 1 options: 1) −5 2) −1 3) 1 4) −6

Ganezh [65]

Answer:

2) -1

Step-by-step explanation:

it is easy

we have to first open the brackets, as it is ' - ' we have to change the sign to opposite of that of the number in the bracket and then solve it.

so the number 2 is having negative sign, we make it positive. this rule is applied only when there is a negative sign and a bracket is there.

-3-(-2)

-3+2

=-1

7 0

4 years ago

PLEASE HELPPPPPP!!!!!!!!

Eduardwww [97]

Answer:

$\sf y=\dfrac{1}{3}x$

Step-by-step explanation:

First find the slope:

$\sf slope\:(m)=\dfrac{change\:in\:y}{change\:in\:x}=\dfrac{4-5}{12-15}=\dfrac{1}{3}$

Use the point-slope form of linear equation: $\sf y-y_1=m(x-x_1)$
(where m is the slope and (x₁, y₁) is a point on the line)

with the found slope and one of the points:

$\begin{aligned}\sf y-y_1 &=\sf m(x-x_1)\\\\\implies \sf y-4 &=\sf \dfrac{1}{3}(x-12)\\\\\sf y-4 &=\sf \dfrac{1}{3}x-4\\\\\sf y &= \sf \dfrac{1}{3}x\end{aligned}$

5 0

2 years ago

Read 2 more answers

Find the solution: 16x-18=2y 4x+9=y x=____ y=____

Find the solution: 16x-18=2y 4x+9=y x= y=