Categories
Assignment Help

Which statement is true? A sample statistic can never be equal to the population parameter. Point estimates are defined for both samples and populations. To calculate a sample proportion, we need to know the population size. To calculate a point estimate, we need to know the sample size

[ad_1]

Answer:

Option C is true. To calculate a sample proportion, we need to know the population size.

Step-by-step explanation:

To calculate a sample proportion, we need to know the population size. – This is the true statement.

A sample statistic can never be equal to the population parameter. This is false. A statistic is a feature of sample and a parameter is a feature of  population. Every sample of the selected size has an equal chance of being used.

Point estimates are defined for both samples and populations. This is false. A point estimate is used to estimate the population parameter.

To calculate a point estimate, we need to know the sample size. This is false. Population is needed.

[ad_2]

Categories
Assignment Help

For what value of g does the function f(g)=g2+3g equal 18

[ad_1]

For what value of g does the function f(g)=g2+3g equal 18

[ad_2]

Categories
Assignment Help

For what value of g does the function f(g)=g2+3g equal 18

[ad_1]

For what value of g does the function f(g)=g2+3g equal 18

[ad_2]

Categories
Assignment Help

Karla has spent $33 on food . She bought milk , cheese , and meat. The milk cost half as much as the cheese and the meat cost four times as much as the cheese. Which equation would help you find the cost of the cheese? c+.5c+4c=33 , c +2c+4c=33 , c(.5c+4c)=33 , c + 4c/5c=33 Let C equal the amount spent on cheese

[ad_1]

Karla has spent $33 on food . She bought milk , cheese , and meat. The milk cost half as much as the cheese and the meat cost four times as much as the cheese. Which equation would help you find the cost of the cheese? c+.5c+4c=33 , c +2c+4c=33 , c(.5c+4c)=33 , c + 4c/5c=33 Let C equal the amount spent on cheese

[ad_2]

Categories
Assignment Help

Karla has spent $33 on food . She bought milk , cheese , and meat. The milk cost half as much as the cheese and the meat cost four times as much as the cheese. Which equation would help you find the cost of the cheese? c+.5c+4c=33 , c +2c+4c=33 , c(.5c+4c)=33 , c + 4c/5c=33 Let C equal the amount spent on cheese

[ad_1]

Karla has spent $33 on food . She bought milk , cheese , and meat. The milk cost half as much as the cheese and the meat cost four times as much as the cheese. Which equation would help you find the cost of the cheese? c+.5c+4c=33 , c +2c+4c=33 , c(.5c+4c)=33 , c + 4c/5c=33 Let C equal the amount spent on cheese

[ad_2]

Categories
Assignment Help

What is 6 1/3 divide 1/6 equal to

[ad_1]

What is 6 1/3 divide 1/6 equal to

[ad_2]

Categories
Assignment Help

One of the sides of a pentagon has length 12. Which of the following points, when paired with (2,3), will make a side equal to this length (14, 15) (2, −9) (−2, −3) (−9, 2)

[ad_1]

One of the sides of a pentagon has length 12. Which of the following points, when paired with (2,3), will make a side equal to this length (14, 15) (2, −9) (−2, −3) (−9, 2)

[ad_2]

Categories
Assignment Help

Lincoln best demonstrated the qualities of the Republican Party in that ___________________ . a. he supported Congress’ decision in the Dred Scott Case c. he supported secession by the Southern states b. he believed that blacks and slaves were equal to whites d. he was against the spread of slavery into new states and territories

[ad_1]

D. He was against the spread of slaver into new states and territories.

This was the whole point of the formation of the Republican party. They took this from the Free Soil party which did not want Slavery in new Western states. 

A, B, and C. is completely wrong.

[ad_2]

Categories
Assignment Help

A proportion is an equation that states two _____ are equal. 1. Variables 2. Ratios 3. Expressions 4. Numbers

[ad_1]

A proportion is an equation that states two _____ are equal. 1. Variables 2. Ratios 3. Expressions 4. Numbers

[ad_2]

Categories
Assignment Help

Whats the only place in this world whos fahrenheit and celsius degrees can be equal?

[ad_1]

Whats the only place in this world whos fahrenheit and celsius degrees can be equal?

[ad_2]

Categories
Assignment Help

The mass of the products in a reaction is always _______ when compared to the mass of the reactants in a reaction. greater lower equal inversely proportionate

[ad_1]

The mass of the products in a reaction is always _______ when compared to the mass of the reactants in a reaction. greater lower equal inversely proportionate

[ad_2]

Categories
Assignment Help

Why did Thurgood Marshall cite the Fourteenth Amendment to argue that segregation in public schools was unconstitutional? The Fourteenth Amendment guarantees equal protection under the law. The Fourteenth Amendment guarantees every child an education. The Fourteenth Amendment gave African Americans the right to vote. The Fourteenth Amendment formed the basis for Plessy v. Ferguson.

[ad_1]

Why did Thurgood Marshall cite the Fourteenth Amendment to argue that segregation in public schools was unconstitutional? The Fourteenth Amendment guarantees equal protection under the law. The Fourteenth Amendment guarantees every child an education. The Fourteenth Amendment gave African Americans the right to vote. The Fourteenth Amendment formed the basis for Plessy v. Ferguson.

[ad_2]

Categories
Assignment Help

If 1 quart is equal to 2 pints, then 7 quarts would equal ___ pints.

[ad_1]

If 1 quart is equal to 2 pints, then 7 quarts would equal ___ pints.

[ad_2]

Categories
Assignment Help

WhichGiven that f(x) = x² + 5x, evaluate f(-2). of the following is equal to ?

[ad_1]

WhichGiven that f(x) = x² + 5x, evaluate f(-2). of the following is equal to ?

[ad_2]

Categories
Assignment Help

A triangle with no equal sides is called an ____ triangle 1.isosceles 2.equilateral 3.obtuse 4.scalene

[ad_1]

A triangle with no equal sides is called an ____ triangle 1.isosceles 2.equilateral 3.obtuse 4.scalene

[ad_2]

Categories
Assignment Help

When a bullet is fired from a gun, what is true about the momentum? The gun has more momentum than the bullet, so the momentum is not conserved. The bullet and gun have equal momenta in opposite directions, so the system’s momentum is conserved. The bullet has more momentum than the gun, so the momentum is not conserved. The bullet and the gun have equal momenta in the same direction, so the system’s momentum is conserved.

[ad_1]

These are 3 questions and 3 answers.

Question 1.

Answer: I = 0.01 A

Explanation:

a) Data:

i) Type of circuit: series

ii) R₁ = 100 Ω

ii) R₂ = 100 Ω

iii) V = 2 V

iv) I = ?

b) Formulas

i) Equivalent resistance, R = R₁ + R₂

ii) Ohm’s law, V = IR

c) Solution

i) R = 100Ω + 100Ω = 200Ω

ii) I = V / R = 2 V / 200Ω = 0.01 A

Question 2)

Answer: False.

Explanation:

The nuclear model of the atom states that the atom is neutral, and consists of a nucleus, which holds the protons and the neutrons, and the electrons which are around the nucleous (in regions called orbintals).

The electrons are negatively charged and the protons are positively charged.

The magnitudes of the charges of both electrons and protons are equal.

Therefore, for the atom be neutral, the neutrons cannot have charge.

Question 3.

Answer: oppose (or resist).

Explanation:

1) The most basic electrical circuit consists of a 1) potential difference (voltage) source, which gives the “impulse” to the charge to flow, 2) the wire, which is the medium through which the charge flows), and 3) a resistor.

The resistor is the element with “resistance” to the flow of charge, this is it resists or oppose the flow of charge.

Some components, like motors, filaments, buzzers, which content or are resistors per se, transform the current (flow of charge) in other useful forms of energy (motion, light, heat, sound).

The resistor meets Ohm’s law which states R = V / I, at constant temperature.

[ad_2]

Categories
Assignment Help

Read the excerpt from President Eisenhower’s State of the Union address on February 2, 1953. A cardinal ideal in this heritage we cherish is the equality of rights of all citizens of every race and color and creed. We know that discrimination against minorities persists despite our allegiance to this ideal. Such discrimination—confined to no one section of the Nation—is but the outward testimony to the persistence of distrust and of fear in the hearts of men. This fact makes all the more vital the fighting of these wrongs by each individual, in every station of life, in his every deed . . . I propose to use whatever authority exists in the office of the President to end segregation in the District of Columbia, including the Federal Government, and any segregation in the Armed Forces. What is the president’s purpose for including these details? to inform his listeners about laws in the District of Columbia to inform his listeners about the work of the US military to persuade his listeners of the importance of equal rights to persuade his listeners to vote for him for president

[ad_1]

to persuade his listeners of the importance of equal rights

The excerpt begins with the statement about cherishing equal rights of all citizens. It then talks about how discrimination is still occurring. He then pledges to end segregation in all places where he has the power to do so: Washington D.C., Federal Government, and the Armed Forces. The excerpt does not include and laws, work the military has done, or calls for presidential votes.

[ad_2]

Categories
Assignment Help

Greg made pudding every weekend. The more times he made pudding, the more practice he gained. The time he took to make the same amount of pudding every week decreased with practice. The function below shows the number of hours f(x) Greg took to make pudding after he had made it x times: f(x) = 2(0.8)x Which graph best represents the function? graph of function f of x equals 0.8 multiplied by 2 to the power of x graph of function f of x equals 0.8 to the power of x graph of function f of x equals 2 to the power of x function of f of x equal 2 multiplied by 0.8 to the power of x

[ad_1]

After Greg makes the pudding 1 time, it takes him f(1)=2(0.8) ^{1}=1.6 hours to make it.

After Greg makes the pudding 2 times, it takes him f(2)=2(0.8) ^{2}=1.28 hours to make it

After Greg makes the pudding 2 times, it takes him f(3)=2(0.8) ^{3}=1.024 hours to make it

so The function is f(x)=2(0.8) ^{x}

Answer: f of x equals 2 multiplied by 0.8 to the power of x

[ad_2]

Categories
Assignment Help

Look at the graph of this system of equations: y = – x2 + 1 and y = x2. At which approximate points are the two equations equal? A) (-0.7, 0.5) B) (0.5, 0.7) C) (0.7, 0.5) D) (-0.5, 0.7) Note: There can be more than answer. Help me and I will give you brainliest. Thank you. In this picture, there’s the graph.

[ad_1]

Y=-x^2+1 and y=x^2

When the two curves intersect their coordinates will be equal, so we can say y=y whenever a solution exists, so:

x^2=-x^2+1  add x^2 to both sides

2x^2=1  divide both sides by 2

x^2=1/2  take the square root of both sides

x=±√(1/2), so there are two solutions, we can use x^2 to find the corresponding y values.

y=x^2, y=1/2 in each instance, so the two point where the curves intersect are:

(-√(1/2), 1/2) and (√(1/2), 1/2)  or if you want approximations….

(-0.7, 0.5) and (0.7, 0.5)

[ad_2]

Categories
Assignment Help

Which of the following is equal to 4 and 1 over 3 divided by 2 and 3 over 5? 13 over 3 times 5 over 13 13 over 3 times 13 over 5 41 over 3 times 5 over 23 4 and 1 over 3 times 2 and 5 over 3

[ad_1]

Which of the following is equal to 4 and 1 over 3 divided by 2 and 3 over 5? 13 over 3 times 5 over 13 13 over 3 times 13 over 5 41 over 3 times 5 over 23 4 and 1 over 3 times 2 and 5 over 3

[ad_2]

Categories
Assignment Help

Two groups of students were asked how many hours they spent reading each day. The table below shows the numbers for each group: Group A 1 2 1 1 3 3 2 2 3 Group B 3 2 3 2 2 2 1 1 2 Based on the table, which of the following is true? The interquartile range for Group A students is 0.5 less than the interquartile range for Group B students. The interquartile range for Group A students is equal to the interquartile range for Group B students. The interquartile range for Group A employees is 0.5 more than to the interquartile range for Group B students. The interquartile range for Group A employees is 1 more than the interquartile range for Group B students.

[ad_1]

Solution:

Data represented as number of hours spent in studying by Group A Students:

 1,2,1,1,3,3,2,2,3

Arranging it in ascending order: 1,1,1 ,2, 2, 2, 3, 3, 3,

As number of terms is odd, The median will be middle value of observation.Which is 2.

The Data arranged in ascending order are , (1,1,1,2),2(2,3,3,3).

Median of (1,1,1,2) = Q_{1}=1

Median of (2,3,3,3)=Q_{3}=3

D_{1}=Interquartile Range =Q_{3}-Q_{1}=3-1=2

For Data Set 2,

The Data for group B students are:  3   2 3 2 2 2 1 1 2

Arranging in ascending order: 1,1,2,2,2,2,2,3,3

total number of observation = 9

Median = 2

Arranging the data as : (1,1,2,2) 2,(2,2,3,3)

Median of (1,1,2,2)= Number of observation is 4 which is even , so Median=Q_{1} =  frac{1+2}{2}=frac{3}{2}

Median of (2,2,3,3)=Q_{3}frac{3+2}{2}=frac{5}{2}

S=Interquartile Range = Q_{3}-Q_{1}=frac{5}{2}-frac{3}{2}=1

D_{1}= S + 1

Interquartile range for Group A Students =Interquartile range for Group B students + 1

Option (D) The interquartile range for Group A employees is 1 more than the interquartile range for Group B students is true.

[ad_2]

Categories
Assignment Help

At which approximate x-value are these two equations equal? A) 0.5 B) 0.8 C) 1.2 D) 1.4

[ad_1]

At which approximate x-value are these two equations equal? A) 0.5 B) 0.8 C) 1.2 D) 1.4

[ad_2]

Categories
Assignment Help

Eric states that the slopes of perpendicular lines are opposite reciprocals (i.e. that the slope of one is equal to the negative of the reciprocal of the other), and Aviva states that the product of the slopes of perpendicular lines is −1. Who is correct? Why? Explain your reasoning with an example. If one of the lines is vertical and the other one is horizontal, how would your answer change?

[ad_1]

Answered by answersmine AT 22/10/2019 – 03:50 AM

Eric’s statement is correct that the slopes of the perpendicular lines are opposites reciprocal with each other compared to Aviva’s. Aviva’s statement is correct but is not usually the case. An example is that when you are given these functions such as y = -2x + 3 and y = 1/2x + 4. The coefficients of the x variable are 2 and negative 1/2. The slopes must be in opposite signs so that the two functions will intersect at a common point and will form a ninety degree angle. This is the very basis of a perpendicular line because if both lines have the same slopes, then both lines are just parallel with each other, they cannot intersect.

Post your answer

[ad_2]

Categories
Assignment Help

What is the range of the function f(x) = – 1/3 |x − 1| − 2? all real numbers all real numbers less than or equal to −2 all real numbers less than or equal to 1 all real numbers greater than or equal to −2

[ad_1]

What is the range of the function f(x) = – 1/3 |x − 1| − 2? all real numbers all real numbers less than or equal to −2 all real numbers less than or equal to 1 all real numbers greater than or equal to −2

[ad_2]

Categories
Assignment Help

Read the following excerpt taken from the US Supreme Court case Plessy v. Ferguson (1896). The case coming on for a hearing before the Supreme Court, that court was of opinion that the law under which the prosecution had was constitutional, and denied the relief prayed for by the petitioner. Ex parte Plessy, 45 La.Ann. 80. Whereupon petitioner prayed for a writ of error from this court, which was allowed by the Chief Justice of the Supreme Court of Louisiana. MR. JUSTICE BROWN, after stating the case, delivered the opinion of the court. This case turns upon the constitutionality of an act of the General Assembly of the State of Louisiana, passed in 1890, providing for separate railway carriages for the white and colored races. Acts 1890, No. 111, p. 152. The first section of the statute enacts “that all railway companies carrying passengers in their coaches in this State shall provide equal but separate accommodations for the white and colored races by providing two or more passenger coaches for each passenger train, or by dividing the passenger coaches by a partition so as to secure separate accommodations: Provided, That this section shall not be construed to apply to street railroads. No person or persons, shall be admitted to occupy seats in coaches other than the ones assigned to them on account of the race they belong to.” The Supreme Court’s ruling in Plessy v. Ferguson was problematic because

[ad_1]

In the Plessy v. Ferguson case, the Supreme Court’s ruling of the “separate but equal” law being constitutional was problematic because the “separate but equal” law accepted segregation and the discrimination that were against blacks.

Hope this helps!

[ad_2]