Please help!!! Will mark brainliest!!!!!!!! Dan wants to determine the probability that the republican on the ballot will be elected mayor of his town. He surveys a random sample of 25 people in the town who are registered to vote. Based on this data, the republican on the ballot has a 36% probability of being elected. Dan now wants to gauge the variation in predictions, to determine how accurate this probability may be. Which if the following would be the best method for him to do this?A) Ask the same 25 people he originally surveyed to make sure they are convinced of their choices


B) Survey several more random samples of 25 people each from people in the town who are registered to vote



C) Survey serveral more random samples of 25 people each from the Republican voters in town


D) Survey a random sample of 25 people who are registered to vote in another town

Answers

Answer 1
Answer: so the answer is C because 25 people each from republican.

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ou write a short story, but you want to make sure your work is protected before you post it online. What should you do to help protect your copyright? (Site 1)

Answers

You can add the Copyright symbol. And write a notice below your work saying that

So this is the question: Meg has 7/8 jug of orange juice. How many 1/2 jug servings can Meg get from that jug? Please help me!

Answers

Answer:

1 cause 4/8 is a half  of the jug at it's full  brethall

so one 1/2

Answer:

she can only get 1 servings

A survey among students at a certain university revealed that the number of hours spent studying the week before final exams was approximately normally distributed with mean 25 and standard deviation 6. What proportion of students studied between 25 and 34 hours

Answers

Answer:

P(25<X<34)=P((25-\mu)/(\sigma)<(X-\mu)/(\sigma)<(34-\mu)/(\sigma))=P((25-25)/(6)<Z<(34-25)/(6))=P(0<z<1.5)

And we can find this probability with this difference:

P(0<z<1.5)=P(z<1.5)-P(z<0)

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.  

P(0<z<1.5)=P(z<1.5)-P(z<0)=0.933-0.5=0.433

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem'

Let X the random variable that represent the hous spent studying the week before final exams of a population, and for this case we know the distribution for X is given by:

X \sim N(25,6)  

Where \mu=25 and \sigma=6

We are interested on this probability

P(25<X<34)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=(x-\mu)/(\sigma)

If we apply this formula to our probability we got this:

P(25<X<34)=P((25-\mu)/(\sigma)<(X-\mu)/(\sigma)<(34-\mu)/(\sigma))=P((25-25)/(6)<Z<(34-25)/(6))=P(0<z<1.5)

And we can find this probability with this difference:

P(0<z<1.5)=P(z<1.5)-P(z<0)

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.  

P(0<z<1.5)=P(z<1.5)-P(z<0)=0.933-0.5=0.433

The product of 2 and a number x is 4. What is the value of 2×4×1=​

Answers

Answer:

2x4x1 is 8, but if you're wanting x's value, it's 2.

a recipe for salsa is 65% tomatoes.if a batch contains 5.2 cups of tomatoes,how large is the batch of salsa. please help!!

Answers

Answer:

8 cups

Step-by-step explanation:

Let the total batch of salsa be x.

(65)/(100)x = 5.2

(100)/(100)x = (100)/(65) × 5.2

x = 8

8 cups of tomatoes...

For the equation y = 2x2 - 5x + 18, choose the correct
application of the quadratic formula.

Answers

Answer:

Option (2)

Step-by-step explanation:

For a quadratic equation,

ax² + bx + c = 0

roots of this equation can be determined by using quadratic formula,

x = (-b\pm√(b^2-4ac))/(2a)

Comparing this quadratic equation with the given equation,

y = 2x² - 5x + 18 = 0

a = 2

b = (-5)

c = 18

By substituting these values in the given formula,

x = (5\pm√((-5)^2-4(2)(18)) )/(2(2))

Therefore, Option (2) will be the answer.