Mathematics Middle School

Answer these two questions (repost bc last answer was wrong):
Suppose that 60% of the students at your school favor a proposed school policy that would ban cell phones at school. Also suppose that every student in your class selected a different random sample of 50 students from your school and calculated the proportion of students in the sample who favors the ban.

5. If your class constructed a dot plot of all these sample proportions, where would you expect the dot plot to be centered?

6. If every student had selected a random sample of size 25 instead of a sample of size 50, would you expect a dot plot of the sample proportions to be more spread out or less spread out than in a dot plot of sample proportions for samples of size 50?

Answers

Answer 1

Answer:

Positive 2.

Step-by-step explanation:

each mark is worth 2, so if you count up it is a +2

Related Questions

Can anyone solve this?

Answers

Diameter = 2 * radius

1 nickel diameter = 2* 0.4 = 0.8

3 nickel diameter = 3* 0.8 = 2.4

B 2.4

how do you get from 8.05 to 8.50 to 9.00?

Answers

Answer:

you need to add 9.00+8.05+8.50 =2555

Bradley has a coupon for 15% off the price of a computer. The sales tax is 8%.
How much money did Bradley save, including sales tax, by using his coupon?
(Total cost of the computer with sales tax and coupon is $454.41)

Answers

Answer: $31.81

Step-by-step explanation:

First figure out how much the sales tax was

454.41x0.8=36.35

Then figure out how much the coupon subtracted off the total price

454.41x0.15=68.16

Subtract 68.16 by 36.35

68.16-36.35=31.81

Solve the equation.
c-12=-4

Answers

C-12=-4
C-12+12=-4+12
C=8

Answer:

[tex]\Longrightarrow: \boxed{\sf{c=8}}[/tex]

Step-by-step explanation:

To solve this problem, all you have to do is isolate the term of c from one side of the equation.

c-12=-4

First, add by 12 from both sides.

[tex]\Longrightarrow: \sf{c-12+12=-4+12}[/tex]

Solve.

Add or subtract the numbers from left to right.

⇒ -4+12=8

[tex]\Longrightarrow: \boxed{\sf{c=8}}[/tex]

Therefore, the correct answer is c=8.

I hope this helps! Let me know if you have any questions.

Please help me with this Question. Please and thank you.
The scale drawing shown represents an existing barn. The shortest side of the barn measures 150 meters. If a new barn that is

Answers

Here you go hope this helps
Answer: 1:1.5

Step by step explanation: We have that 150 meters in the reality and the new size is 2/3, therefore 150 meters*2/3= 100mtrs, also 100 mtrs in the reality or 1 is to 1.5

Answer ASAP and whoever get it right can have brainliest!

Answers

Answer:

2/7 divided 7= 2/14=1/7

Step-by-step explanation:

In these kind of problems you keep,change,flip

2/7 stays the same the division symbol change to a multiplaction sign and since the 7 is a whole we have to change it to 7/1 and flip it so the answer is   2/14 and since 2 goes into 14 we can simply when change to 1/7

HHope this helps :)

2/49
That’s the answer

7. Terrance needs to find the lateral surface area of the box shown below. Assuming that the base is the bottom of the prism, which of the expressions below will give him the correct lateral surface area?

Answers

The expression that will give the correct lateral surface area of the rectangular prism = (14.5 + 14.5 + 7 + 7)(8.6)

What is the Lateral Surface Area of a Rectangular Prism?

The lateral surface area (LSA) = 2(l + w)h

Given the following:

l = 14.5 w = 7h = 8.6

Lateral surface area of the prism = 2(l + w)h = 2(14.5 + 7)8.6

Lateral surface area of the prism = (14.5 + 14.5 + 7 + 7)(8.6)

Learn more about lateral surface area of prism on:

https://brainly.com/question/14028871

PLEASE HELP! I NEED HELP

Answers

Answer:

c

Step-by-step explanation:

solve for the area of the scale drawing of the 8 by 7 rectangle

8+8+7+7 = 30

solve for original rectangle 16 by 14

16+16+14+14 =60

solve for the area of the drawing divided by the area of the original

30/60=

1/2=

50%

your answer would be c

Find the area of the figure. Round your answer to the nearest hundredth, if necessary.

Answers

Answer:

127.23

Step-by-step explanation:

Equation

pi/8×18^2=127.2345025 rounded 127.23

Answer: 113

Step-by-step explanation:  The number 18 is the diameter, multipy it by pi (3.14) then divide it by half because it is a half circle.

A convenience store supplies two types of protein bars. One protein bar has 320 calories in the 2-ounce size. How many calories are in the 3-ounce size of the bar?

Answers

Since one protein bar has 320 calories in a 2-ounce size, we can divide 320 by 2. When solving, we get 160. This means there are 160 calories in one protein bar.

We are trying to find how much calories are in the 3-ounce size, so we must multiply 160 by 3.

The final answer to your question is 480. There are 480 calories in the 3-ounce protein bar.

There are 480 calories in a 3 ounce bar

2) All students at Leara's school take a physical education (P.E.) class. A random
sample of 200 students is asked what activity they would like to do every Friday
in P.E.: 60 students want to play dodgeball, 30 want to play basketball, 70 want
to play kickball, and 40 want to play softball. Can the teacher conclude that
basketball is probably the least popular activity across the whole schoo'?
Explain your answer.

Answers

Answer:

Yes, because there are only 30 students out of 200 students wanted to play basketball

Step-by-step explanation:

60 stds - dodgeball

30 stds - basketball

70 stds - kickball

40 stds - softball

Answer:

Yes

Step-by-step explanation:

The teacher can conclude that basketball is probably the least popular activity across the whole school becasue the sample of students was random. It represents the most and least popular activities to play every Friday.

CAn someone help math 34 -9999

Answers

Answer:

-9965

Step-by-step explanation:

you can subtract 9999 by 34 and get 9965

then you need to add the - negative sign.

9965 if a positive and
if negative 10,033
sorry i diddnt know if the 9999 is a negative or a positive

look at the picture also brainliest

Answers

Answer:

50.24

Step-by-step explanation:

Area of circle is πr²

r=d/2

r=8/2

r=4

A=4²π

A=16π

A=16*3.14

A=50.24 m²

In a word processing document or on a separate piece of paper, use the guide to construct a two column proof proving DC || AB, given AB = CD and AD = CB. Upload the entire proof below.

Given:
AB = CD
AD = CB

Prove:
DC || AB

Answers

Answer:

Step-by-step explanation:

1. most of the time the first 1 is the given but you have two given so im not sure which one would go here.

2. line AC is = to line AC becuase of: reflective property

3. Triangle ADC = Triangle ABC because of SSS

4.  Angle 1 = Angle 4 because of alternat interor angles

5. DC is  parralell to Ab becuase of CPCTC

pls help me answer this

Answers

Answer:

Step-by-step explanation:

1) an axial symetrical inversion

2) I don't know sorry

Answer:
Your friend is correct.
When a figure is reflected, it is flipped. Since it is reflected on the x-axis, that is the direction it is flipped in. When flipped, the coordinate of the bottom left corner is (1, 1). When you move the figure over 5 units (which is what translating is), the coordinates are (-4, 1) which matches with the corner of the second given figure.
I hope I explained it well, and I hope I’m not too late to help.

Factor out the coefficient of the variable term.

Answers

Answer:

4(x-5)

Step-by-step explanation:

you find the greatest common factor and in this case it is 4 so you divide everything by 4 and that's how i got the answer

Answer:

4

Step-by-step explanation:

in 4x-20, you take 4x and remove the variable or letter and then you get your answer which is 4

easy points easy points

Answers

4 outta 16 or 4/16 I think
It’s 1:3 1 triangle 3 squares

I need help :,)

Mark is traveling by bus and needs to go from

Denver to San Diego and then on to San Francisco


The charge from Denver to San Diego is $17.50


and the charge from San Diego to San Francisco


is $8.75. How much will the ride cost?

Answers

Answer:

add 17.50 to 8.75 you get 26.25

Answer:

$26.25

Explanation:
add both numbers given

when he sorts the class's scores on the last test, the teacher notices that exactly 12 students scored better than Clare and exactly 12 students scored worse than Clare. Does this mean that Clare's score on the test is the median? Explain your reasoning.

Answers

Answer:

Yes, Clare's score on the test is the median.

Step-by-step explanation: Yes, because if we line up the scores from least to greatest and continue to cross off a score on each side, Clare's score will be exactly in the middle.

Yes clare’s test score is the median. This is true because the median is the middle of the data so if there are equal numbers of 12 below and above her score that would mean her score is in the middle and would be considered the median

Please help needed its due soon

Answers

25yd=75 . sorry mane had to get these points up you know

HELPP IM SOO LOSTT FIRST GET BRAIEST

Answers

Answer: 50

Step-by-step explanation: I think it's 50 because the angle is 180 so 180 minus 130 because 65+65 = 130. So maybe it's 50!

Answer: 50
Explain: the the 65 degrees angles are part of an 180 angle, so u put 180-(65+65)=___

help please!
write percents 1. 6 31/33 2. 1/8


write as decimal 1. 5 4/25 2. 3/8

Answers

Percentage : 1. 563% 2. 12.5%
Decimal : 1. 0.8 2. 0.375

please help me on this question.

Answers

Answer:

I am pretty sure it is 40%

Step-by-step explanation:

A street sign is 111 inches tall. How tall is it in feet and inches?

Answers

Answer:

9ft 3in

Step-by-step explanation:

a foot is 12in so just divide the 111 into 12ths

Answer:

9ft 3in

Step-by-step explanation:

What is the value of the flowing expression?

Answers

your answer is d. 351
The answer is D 351.

PLS I NEED HELP THIS IS MY LAST QUESTION PLS
i will put a brain list just pls help me!!
Theresa uses a unique box in the shape of a trapezoidal prism for her specialty candles. The area of the base of the box for the smaller candle is 125 cm2 and the box is 12 cm tall. The box used for the larger candle has a base whose area is 160% that of the smaller box, and it is 6 centimeters taller.
What percent of the volume of the smaller box is the volume of the larger box?
Answer:

Answers

Answer:

41.7%

Step-by-step explanation:

100%----125

10%------125/100 x 10                                                                                                        

            =12.5

160%-----12.5 x 16

            =200

volume of small box = 200 x (12+6)

                                  = 3600

volume of large box = 125 x 16

                              = 1500

percentage of volume of small box is the volume of large box

= 1500/3600 x 100%

=41.667% (5 s.f)

=41.7% (3s.f)

Brainliest! PlEASE be right! Thank you Sugarr! lol kiddin, pls help tho

Answers

Answer:

111

Step-by-step explanation:

Answer:

N is 111

Step-by-step explanation:

To find the answer you need to find what 96 + 12 + 3 is. 96 + 12 + 3 = 111. 111 - (12 + 3) is 96 so 111 should be the right answer.

Can you please help me with this question?

x + 20 ≤ -10

Answers

Answer:

[tex]x\leq -30[/tex]

Hope This Helps! :)

Answer:

x≤-30

Step-by-step explanation:

Since you want to get x by itself subtract 20 from both sides, this will leave x by itself and -10-20=-30 giving the answer above.

Answer ASAP and whoever get it right can have brainliest!

Answers

Answer: 2/49

I needed to have 20 characters to post this.

Step-by-step explanation:

[tex] = \frac{2}{7} \div 7 \\ [/tex]

[tex] = \frac{2}{7} \times \frac{7}{1} \\ = \frac{2}{7} \times \frac{1}{7} [/tex]

[tex] = \frac{2}{49} \\ [/tex]

The kindergarten class at Stokes Elementary drinks about 210 pints of milk per week. How many gallons of milk does the class drink in 10 weeks? Round your answer to the nearest tenth of a gallon if needed.

Answers

Answer:

About 262.5 gallons of milk

Step-by-step explanation:

262.5 gallons of milk is the answer.
Other Questions
1 pointWhat is the x component of a vector that is defined as852m at 302? Which of the following explains why China set up the one-child policy? a It needed to expand trade with the West. b It struggled to support a large population. c It wanted only a certain race in China. d It was pushing to grow at a faster rate. Which statement below accurately reflects how the New Deal was implemented? Roosevelt took his time implementing the program. The New Deal was a promise that would be implemented after the first One Hundred Days. Roosevelt intended on starting his plan immediately. The New Deal was a metaphor for better things to come and not an actual policy. For her presentation on Italy, Matilda used a red background with light green text. When her friend critiqued her presentation, she found it difficult to read. What could Matilda do to make her slides easier to read?a Change the background to white and the text to dark green. b Change the background to yellow. c Change the text to dark green and the background to black. d Change the text to pink Luis forma una torre con seis dados normales colocados sobre una mesa, tal como se muestra en la figura. Considerando que l puede moverse alrededor de la mesa, Cuntos puntos cmo mnimo son visibles para l? If someone answers this question, the next one i'll ask with be 100 points you invest 5,000 in a bank for 2 years at a 3% interest rate. Which of the following statements characterize the term biblical eyes?It is a way of looking at life.It involves obedience to Gods Word in every situation.It means seeing things with excitement.It means we see the world through hopeful eyes.It means to perceive Gods creation the way He intends us to perceive it. About 1.37x10^7 people in South America speak English.English is the primary language for about 3.7 x 10^6 of thepeople. About how many times as much people speakEnglish as their primary language? You work as a cashier at the local Grocery Store and make $ 9.00 per hour. You worked 6 hours onMonday, Tuesday, Wednesday, and Thursday. What is your gross salary?Can anyone help me with this pleaseee? Help asap no links pls . why do some political leaders allow brides ? If n is at least 7, which inequality best represents the values of n?On>7On Explain in terms of atomic structure why barium has lower first ionization energy than magnesium Find the radius and the diameter to the nearest hundredth when C = 8 yd. Use 3.14 for . How will the decrease in the raccoon population affect the other populations? point b has coordinates (3,1). the x-coordinate of point a is -6. the distance between point a and point b is 15 units. what are the possible coordinates of point a? what's THE BEST ANSWER....The_______ Was black and He loved her. Before the National Organization for Women was founded, efforts to gain equal rights for women resulted in-the ratification of the Equal Rights Amendment.-fairer educational funding for men and women.-few changes by either the government or employers.-a surprising reduction of women in the workforce. What is the republican government clause?a.This clause states that the United States Constitution is the supreme law of the land.B. This clause guarantees that all the states will continue to have governments that are chosen by the people.C. This clause requires the states to cooperate with each others' laws.D. Also known as the elastic clause, this clause gives Congress all the powers it needs to carry out its enumerated powers.