The following data is from a simple random sample of 12 students GPAs. 3.12 2.45 4.0 3.76 3.54 2.78 3.39 3.21 1.98 3.43 3.98 2.77 Develop a point estimate of the population mean.

Answers

Answer 1

Answer: 3. 2

Step-by-step explanation:

Given the data:

3.12 2.45 4.0 3.76 3.54 2.78 3.39 3.21 1.98 3.43 3.98 2.77

Point estimate of population mean :

Σx / N

(3.12 + 2.45 + 4.0 + 3.76+ 3.54 + 2.78 + 3.39 + 3.21 + 1.98 + 3.43 + 3.98 + 2.77)

= 38.41 / 12

= 3.2008


Related Questions

What percentage of the shape is orange?
Write your answer using a percent sign (%).
(help!) almost done!! I will mark who ever awnser s first as brainliest!

Answers

Answer:

40%

Step-by-step explanation:

There are five pieces of a square.  Two of the five pieces are shaded in orange, since each piece is 20% and there are two shaded pieces, it is your best bet that your final answer is 40%.

Answer:

40%

Step-by-step explanation:

Since there are only two boxes filled, the fraction would be 2/5. Now, by applying that knowledge, you can see that the bow is filled 40% of the way with orange. An easy way to figue this out would be to divide 2 by 5 and get the decimal of .4 which as a percentage would be 40%. Hope this helped!

How much is a medium pizza and garlic bread?

Answers

Answer:

$10.10

Step-by-step explanation:

$7.50 + $2.60 = $10.10

In the figure, x | y and a is a transversal that crosses the
parallel lines.
a
Which angle pair forms alternate exterior angles?
O 24 and 26
O 22 and 28
O 23 and 25
o 22 and 26

Answers

Answer:the answer is b

Step-by-step explanation:

Please Help, and say where u got your answer from?

How does Washington’s request foreshadow a power shift within the American colonies?

Answers

Answer:

Having done everything in his power to secure American independence, Washington decided to retire “from all public employments” after the war. He found true peace back at Mount Vernon and was happy to “move gently down the stream of life until I sleep with my fathers.” Washington’s joyful retirement was interrupted in 1787 when his country called on him again.

Step-by-step explanation:

The diameter of a circle is 32 inches. What is the circle's circumference?

Answers

Answer:

32[tex]\pi[/tex]

Step-by-step explanation:

if diameter 32 then radius 16

circumference formula 2*[tex]\pi[/tex]*radius

32[tex]\pi[/tex]

can someone please help me.​

Answers

Answer:

Step-by-step explanation:

1. isosceles

2. right scalene

3. obtuse scalene

4. equilateral

5. right isosceles

6. acute scalene

7. equilateral

8. isosceles

James made a bag of trail mix with 1/2 cup of almonds, 6/7 cup of dried pineapples, and 2/9 cup of pumpkin seeds.
About how much trail mix did James make?
Explain in 3-5 complete sentences how you used estimation to solve.

Answers

Answer:

Step-by-step explanation:

1/2 + 6/7 + 2/9 = 199/126

Answer:

2/14

Step-by-step explanation:

2/14

PLS HELP I HAVE 10 MINUTES LEFT

Answers

Answer:

the first one and the last one

Step-by-step explanation:

trust me

please help me please

Answers

9514 1404 393

Answer:

  B (rate of change), D (y-intercept)

Step-by-step explanation:

a) The rate of change is found by solving for y. It is the x-coefficient:

  4y = -x +12

  y = -1/4x +3 . . . . divide by 4

The rate of change is -1/4.

__

b) The rate of change can be found using the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (10 -4)/(2 -(-2)) = 6/4 = 3/2

The rate of change is 3/2.

__

c) The rate of change can be found by counting grid squares. The line goes down 1 square for each square to the right. The rate of change is ...

  m = rise/run = -1/1 = -1

The rate of change is -1.

__

d) The rate of change is 0.5, the amount paid per box.

__

Of the rates -1/4, 3/2, -1, 0.5, the largest rate of change is 3/2 in relationship B.

_____

a) The y-intercept is the constant in the slope-intercept form equation: +3.

__

b) The y-intercept can be found from the point-slope form equation using the slope we found.

  y -4 = 3/2(x +2)

  y = 3/2x +3 +4

  y = 3/2x + 7

The y-intercept is 7.

__

c) The y-intercept is 4, where the line crosses the y-axis.

__

d) The y-intercept of a proportion is 0.

__

Of the y-intercepts 3, 7, 4, 0, the least y-intercept is 0, in relationship D.

Find the missing angles

Answers

Answer:

y=55

x=70

Step-by-step explanation:

HELP ME PLEASE I REALLY NEED HELP!!!!

Answers

Answer:

x = 5

Step-by-step explanation:

[tex]\frac{x}{2x - 3} = \frac{10}{14}[/tex] --> Triangle Proportionality Theorem

10(2x - 3) = 14(x) --> Cross Multiplying

20x - 30 = 14x --> Distributing 10 and 14 to the parentheses

20x -30 - 14x + 30 = 14x - 14x + 30 --> Subtracting 14x and adding 30 on both sides

6x = 30 --> Simplifying

6x/6 = 30/6 --> Dividing 6 on both sides

x = 5 --> Simplifying

Hope this helped!

By the way, I'm not so sure you understand the concept of "Triangle Proportionality Theorem" since you asked a similar one before that. So I'll post an image that I found on the internet that explains it. :D

The length of the rectangle is three meters less than twice the width. The perimeter is 36meters. What’s the demensions of the rectangle

Answers

Answer:

L= 11m

W= 7m

Step-by-step explanation:

Step one:

given data

Let the width W= x

Length = (2x-3)

P= 36 m

Required

The perimeter

P= 2L+2W

36= 2(2x-3)+ 2x

36= 4x-6+2x

collect like terms

36+6= 6x

42= 6x

divide both side by 6

x= 7

the width is 7 m

the length = 2x-3= 2*7-3= 14-3= 11 m

If the circumference of a circle measures 3pi. cm, what is the area of the circle in terms of pi.

Answers

Answer:

the circumference equation is 2pi r and the circumference for this problem is 3pi so that would mean that the radius is 1.5

with that info, we can find out the area of the circle which is pi r squared.

1.5*1.5=2.25

AREA=2.25pi

NEED HELP!!! I’ll report if your putting random answers down

Answers

Answer:

First blank: 8

Second Blank: 16

Third Blank: 56

Step-by-step explanation: Hope I helped

8, 16, 56
7*8= 56
5*8 + 2*8
40+ 16
56

pic is below pls help​

Answers

Answer:

Can u make the picture any bigger?

Step-by-step explanation:

Can some one help me please

Answers

Answer:

B

Step-by-step explanation:

x+2+10 is 13 which is the beginning of the perimeter

I think it’s B I’m not for sure

Use cubic regression to find a
function that fits the following
points.
(1,-9), (2,-15), (3,-29),(-1,3)

Answers

The cubic regression equation that fits the points (1,-9), (2,-15), (3,-29),(-1,3) is given as follows:

f(x) = -x³ + 2x² - 5x - 5.

How to find the equation of regression using a calculator?

To find the equation, we need to insert the points (x,y) in the calculator.

In this problem, we have that:

The values of x are: 1, 2, 3, -1.The values of y are: -9, -15, -29, 3.

Using the calculator, the equation is given by:

f(x) = -x³ + 2x² - 5x - 5.

More can be learned about regression equations at https://brainly.com/question/16793283

#SPJ1

Karen purchased a DVD player on sale. The original selling price was $171.50. The sale price was $149.37.

Answers

$22.13 is the discount money off

I don’t think this is right I need help?

Answers

only 1 and 2. input the numbers for x

Answer:

1 and 2

Step-by-step explanation:

If x is 1: 2 x 1 + 7 = 2 + 7

= 9  This works.

If x is 2: 2 x 2 + 7 = 4 + 7

= 11  This works

If x is 3: 2 x 3 + 7 = 6 + 7

= 13  This does not work since 2x + 7 has to be less than 13.

HELP ME PLEASE!!!!!!

Answers

It’s an eighth of area of b

please simlify this : 3(3×10⁸)²
its urgent please ​

Answers

Answer:

3(3×10⁸)²

3(9×10¹⁶)

27×10¹⁶

I have no idea how about that

is this table linear or exponential what us the slope and what is the equation ?​

Answers

Answer:

this table is exponential

Step-by-step explanation:

the way we can tell this is because we can find a common ratio of 4. we know this because linear tables have a common difference exponential tables have a common ratio. i found this answer by dividing 32,768 and 8,192

32,768/8,192 = 4

you can find a linear function by subtracting point 1 and point 2.

pls help , u dont have to explain that much​

Answers

4m3 n cause you times like terms then add the numbers together then put m to 3 cause they’re multiplying

What is the expanded form of 10.63?

Answers

Answer:

10+0.60+0.03

Step-by-step explanation:

simple

Hey there!

Note; When you see the phrase “expanded form” think of the SUM (addition) formation of a given which writes as it is added with the given which makes it an single value when it is multiplied by the place value

Now that we have that note/fact out of the way we have answer your question!

Answer: 10 + 0 + 0.6 + 0.03 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

x/8=21/24 as a whole number

Answers

Answer:

x = 7

Step-by-step explanation:

make it braintliest please

In art class, David painted an image of a bowl of fruit. For the oranges, he mixed 2 ounces of
white paint and 4 ounces of orange paint. For the peaches, he mixed 3 ounces of white paint
and 5 ounces of orange paint. Which type of fruit was a lighter shade of orange?

Answers

Answer: the peaches were a lighter shade of orange

QUICK HELP!!!!!!!!!!!!!!!!

Answers

Answer:

Its C im pretty sure. Also loveee your pfp!

200 divided by 60 for example there are 200 milk cartens each one has 60 milk containers how many milk containers exactly are in the cartens

Answers

Answer:

12,000 containers

Step-by-step explanation:

Given : 200 milk cartens are there

60 milk cantainers are there in each cartens.

to find are there in all

200 × 60 = 12,000 containers in all

area of a triangle is 14x^5 + 63x^2. If the base is 7x^2, write an expression to represent the height ( x^2 means x square)

Answers

Answer:

[tex]h=4x^3+18[/tex]

Step-by-step explanation:

Given that,

The area of a triangle, [tex]A=14x^5 + 63x^2[/tex]

Base, [tex]b=7x^2[/tex]

We need to find the height of the triangle.

The formula for the area of the triangle is given by :

[tex]A=\dfrac{1}{2}\times b\times h\\\\\text{h is height}\\\\h=\dfrac{2A}{b}\\\\h=\dfrac{2\times (14x^5 + 63x^2)}{7x^2}\\\\h=\dfrac{2\times 7x^2(2x^3 + 9)}{7x^2}\\\\h=2(2x^3+9)\\\\=4x^3+18[/tex]

So, the height of the triangle is [tex]4x^3+18[/tex].

3m + n = 71
2m - n = 30

Answers

Answer:

m = 20.2; n = 10.4

Step-by-step explanation:

[tex]\left \bigg \{ { \big {3m + n = 71} \atop \big {2m - n = 30}} \right.; => \left \bigg \{ { \big {3m + n -3m= 71-3m} \atop \big {2m - n-2m = 30-2m}} \right.; => \left \bigg \{ { \big { n = 71-3m} \atop \big { - n = 30-2m}} \right. ; => \\\\=> \left \bigg \{ { \big { n = 71-3m} \atop \big { - n \times (-1) = (30-2m)\times (-1)}} \right.; =>\left \bigg \{ { \big { n = 71-3m} \atop \big { n = -30+2m}} \right..[/tex]

-30 + 2m = 71 - 3m

-30 + 2m + 30 = 71 - 3m + 30

2m = 101 - 3m

2m + 3m = 101 - 3m + 3m

5m = 101

5m ÷ 5 = 101 ÷ 5

m = 20.2

n = 71 - 3m = 71 - 3 × 20.2 = 10.4

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