Sales volume last weekend for four samples, each consisting of five car dealerships, were as follows: Data Point 1 2 3 4 5 Sample 1 21 10 19 35 23 Sample 2 34 44 29 15 30 Sample 3 38 22 29 31 15 Sample 4 47 39 20 16 36 What is the mean of the distribution of sample means

Answers

Answer 1

Answer:

Mean of sample means = 22.12

Step-by-step explanation:

Data points     1     2     3     4     5        Sample mean

Sample 1         21    10   19    35   23         21.6

Sample 2        34   44   29   15   30         30.4

Sample 3        38   22   29   31   15          27

Sample 4         47   39    20  16   36         31.6

[tex]Mean of means = \frac{Sum of sample means}{No. of samples}[/tex]

                         [tex]=\frac{21.6 + 30.4 + 27 + 31.6 }{5} \\= 22.12[/tex]

Answer 2

Answer:

22.12

Step-by-step explanation:

Hope this helps


Related Questions

Is -1/16 a rational number?

Answers

Answer:

yes ‐1/16 is rational number

solution ‐1/16=‐16

and every integer is a rational number

Add the fraction 1/4 + 5/6 write your answer as a mixed number

Answers

Answer:

a common factor 4 and 6 have is 12. we can change this to get it to 12.

¼->3/12

⅚-> 10/12

add the new fractions together

3/12+10/12=13/12 or 1 and 1/12

The required answer is  1 1/12 as a mixed number when adding the fraction 1/4 + 5/6.

What is the fraction?

A fraction is defined as a numerical representation of a part of a whole that represents a rational number.

The fractions are given in the question

1/4 and 5/6

We have to determine the addition operation,

⇒ 1/4 + 5/6

Take the LCM in the terms of fractions

⇒ 13/12

Convert the fraction to a mixed number by using long division to find the quotient and remainder

⇒ 13 ÷ 12 = 1 R1

The quotient will be the whole number in the fraction, and the remainder will be the numerator in the mixed number

⇒ 1 1/12

Therefore, the required answer is  1 1/12 as a mixed number.

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What is the diameter of a circle with an area of 1,808.64 square meters, rounded to the nearest meter?

Answers

Answer:

Diameter = 47.99

Step-by-step explanation:

A circle with an area of 1,808.64 square meters, rounded to the nearest meter and the diameter = 47.99.

We have to determine

The diameter of a circle with an area of 1,808.64 square meters, rounded to the nearest meter.

What is the diameter of the circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. Equivalently, it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant.

Therefore we get the value of the diameter is = 47.99 meters.

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Mr Goodwin finished grading his students homework at 4:12 PM if he spent an hour and 33 minutes doing this what time did he start

Answers

Answer:

2:21 pm

Step-by-step explanation:

Finished 4:12

He spent 1 hour and 33

4:12 - 1 hour 33

minus the hour

3:12

minus 33

12-33

2:21pm

Translate this sentence into an equation.

54 is the sum of 15 and Jenny's age.

Use the variable j to represent Jenny's age.

Answers

Answer:

54= 15 + J

Step-by-step explanation:

j= 39

ANSWER !!
ILL GIVE 40 POINTS !!
DONT SKIP :((
PLUS BRAINLIEST !

Answers

Answer:

24 square kilometers

Step-by-step explanation:

Well, this is a trapezoid. The formula for the area of a trapezoid is 1/2 the height times base one plus base two. In other words, 1/2 h x (base 1 + base 2)

So in this case, the two bases are 4 and 12. So we would add the two bases to get 16. Now, we have to half the height. 3 divided by 1/2 is 1.5. So we then do the last step which is multiplying the height by the two bases. So in other words, 1.5 times 16. And 1.5 times 16 is 24. Therefore, the answer is 24 sqaure kilometers.

Answer:

Step-by-step explanation:

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I WILL GIVE BRAINLEST FOR THE CORRECT ANSWER ​

Answers

Answer:

a. Find the multiples of 4 and 12 in the 30 to 40 range:

4 ⇒ 32, 36, 40

12 ⇒ 36

Answer = 36

b. Divisors of 24 ⇒ 2, 3, 4, 6, 8, 12, 24

Answer = 3

3 is the only odd divisor.

c. Gcd = Greatest common divisor that isn't zero.

35 divisors ⇒ 1, 5, 7, 35

42 divisors ⇒ 1, 2, 3, 6, 7, 14, 21, 42

Answer = 7

d. 98 divisors ⇒ 1,2,7,14,49,98

99 divisors ⇒ 1,3,9,11,33,99

Answer = 1

e. Answer = 25.

A number's greatest divisor is its own self.

couch Emanuel is trying to lose weight. he starts 2017 weighing 296 pounds. If he plans to burn enough calories to lose 3 pounds per week, then how many weeks will pass before Coach Emanuel is at most 251 pounds

Will give brainlist for once in my life

Answers

Answer:

15 weeks

Step-by-step explanation:

I just answered this one not too long ago

It will take 15 weeks for Emanuel to lose at most 251 pounds.

What is an equation?

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

For example, 3x + 5 = 15.

Given that, Emanuel is trying to lose weight, he starts 2017 weighing 296 pounds.

If he plans to burn enough calories to lose 3 pounds per week,

We need to find that how many weeks will pass before Emanuel is at most 251 pounds,

So, let the number of weeks be x,

We will use here the concept of equations solving,

So, establishing the equations,

296 - 3x = 251

296 - 251 = 3x

45 = 3x

x = 15

Hence, it will take 15 weeks for Emanuel to lose at most 251 pounds.

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How many positive integer values of x are solutions to the inequality 10 < -x + 13?

Answers

9514 1404 393

Answer:

  2

Step-by-step explanation:

The solution to the inequality is ...

  10 < -x +13

  x < 3 . . . . . . . add x-10 to both sides

The additional restriction that x is positive makes this ...

  0 < x < 3

The only integer solutions to this are x = 1 and x = 2.

There are two (2) positive integer values of x that are solutions.

Answer:

2

Step-by-step explanation:

We first solve the inequality:

10 < -x + 13

-3 < -x

3 > x.

The only positive integers less than 3 are 1 and 2, for a total of 2 solutions.

The decorating committee for a school
banquet decides to put flowers on each table. Each
batch of flowers will have 3 white carnations and
5 yellow carnations. The committee will need 60
white carnations. What is the total number of
white
and yellow carnations the committee will
need?
A. 20
B. 100
C. 120
D. 160

Answers

Answer:

D. 160

Step-by-step explanation:

This question can be solved by proportions, using a rule of three.

In this question:

For each 3 white carnations, 5 yellows are needed, which leaves us with 8 total carnations. So for 60 white, the total is:

3 white - 8 total

60 white - x total

So

[tex]3x = 60*8[/tex]

Dividing both sides by 3

[tex]x = 20*8 = 160[/tex]

The correct answer is given by option D.

An artist uses 18 colors on an art palette to paint a picture. This is 72% of all the colors on the palette. How many colors are on the artist’s palette?

Answers

Answer:

25

Step-by-step explanation:

PLS ANSWER QUICK, HELP AND EXPLAIN

Answers

Answer:

C.

Step-by-step explanation:

-1/3 – ¼
please show work if you don`t please don`t answer the question

Answers

Answer:

-1/3 - 1/4

First, make common denominators

-4/12 - 3/12

Then subtract the numerators

- 7/12

1/6 students are wearing blue shirts, and 2/3 are wearing white shirts. There are 36 students. How many students are wearing shirts that arent blue or white?​

Answers

Answer:

6 students are wearing shirts that aren't blue or white

Step-by-step explanation:

1/6 + 2/3 = 5/6  

5/6 are wearing either blue or white so 1/6 isn't wearing blue or white

there are 36 student and 1/6 means 36 divided by 6

36 divided by 6 = 6

please help asap

i keep failing these quizzes i’m so confused

Answers

Answer:

try b

Step-by-step explanation:

Find the value 0.5 x 0.5 x 0.5=

Answers

Answer:

0.125

Step-by-step explanation:

0.5 x 0.5 x 0.5 = 0.125

The inverse of x→y is:​

Answers

Answer:

This is invertible

Step-by-step explanation:

pls give brainliest!

have a great day!

40 POINTS !! 40 POINTS !!

PLEASE HELP , DONT SKIP !

NO LINKS OR FILES.

Answers

Answer:

10.5

Step-by-step explanation:

I believe the graph is saying there is 6 glasses that have exactly 1¾ tablespoons. Therefore, you do 6 × 1¾ and get 10.5 or 10 ½ tablespoons

the answer is  " 10.5 "

Un tercio es menor que cuatro centésimos.?

Answers

Answer:

no por que 1/3 es menor que 4

Step-by-step explanation:

What is the equation of the line that is the perpendicular bisector of the segment
with (10,-15) and (-10, 25) as endpoints?
y= kx + 10
y= kx + 5
y= -x + 10
y = 2x + 5

Answers

Answer:

y= kx + 5

Step-by-step explanation:

Perpendicular bisector passes through the midpoint of the line.

The midpoint is:

x = (10 - 10)/2 = 0y = (-15 + 25)/2 = 5

Slope of the line:

m = (25 - (-15))/(-10 - 10) = -2

The line perpendicular to this has to have a slope of 1/2 as perpendicular lines have opposite-reciprocal slopes.

Use point-slope form and point (0, 5) to find the equation of the line:

y - 5 = 1/2(x - 0)y = 1/2x + 5

Correct option seem B as others don't match ours

What is the volume of the following rectangular prism?

Answers

Answer: 2.76

Step-by-step explanation:

I wrote it down on paper :)

someone please help me answer this!!

Answers

Answer:

a = 18 ft is the answer.

Step-by-step explanation:

a = ?

b = 24 ft

c = 30 ft

According to the Pythagoras theorem,

a² + b² = c²

a² + 576 = 900

a² = 900 - 576

a² = 324

a = 18 ft

∴ a = 18 ft is the length of the missing leg.

Answer:

18 feet

Step-by-step explanation:

The Pythagorean theorem is a formula that can be used to find the unknown side length of a right triangle when given the length of the other two sides. The general formula for the Pythagorean theorem is the following,

[tex]a^2 + b^2 = c^2[/tex]

Where (a) and (b) are the legs of the right triangle, or rather the sides adjacent to the right angle of the right triangle. Additionally, (c) is the hypotenuse or the side opposite the right angle of the right triangle.

Substitute in the given values and solve, let parameter (a) represent the unknown side of the triangle,

[tex]a^2 + b^2 = c^2\\[/tex]

Substitute,

[tex](24)^2 + a^2 = (30)^2\\[/tex]

Simplify,

[tex]576 + a^2 = 900[/tex]

Inverse operations,

[tex]576 + a^2 = 900\\-576\\\\a^2 = 324\\\sqrt{}\\\\a = 18[/tex]

what is the area of the triangle shown above

Answers

Answer:

I don't see the triangle...

Answer this with detail, please!

Answers

Answer:

D

Step-by-step explanation:

Hello There!

In order for a relationship to be proportional it must follow these requirements:

It must have a constant rate of changeIt must go through the origin (0,0)The equation is put in y = kx form (where k = slope)

Knowing this let us now look at each relationship

The first one indeed has a constant rate of change

However it has a y intercept of (1,0) so it doesn't go through the origin therefore it is not a proportional relationship

For B:

B is not a proportional relationship because it does not have a constant rate nor can we tell if it goes through he origin

The y value first adds by 7 then by 9 then by 6. (while the x value goes up 1)

in a constant rate of change relationship the slope is constant and goes up by a certain amount each time therefore relation b is not proportional

For C:

Like relation A it has a constant rate of change but its not put in y = kx form and has a y intercept. Because of this it is not considered a proportional relationship

For D:

Relation D happens to have a constant rate of change (as it has a vertical straight line). It also happens to pass through the origin (0,0)

The relation fulfills each requirement therefore D is your answer

An equilateral triangle has a side length of 10 units. What is it’s area?

Answers

Answer:

[tex]25\sqrt{3}=43.3\ \mathrm{units}[/tex]

Step-by-step explanation:

Area of a triangle = [tex]\frac{1}{2}ab\textrm{sin}(\theta)[/tex] where [tex]a[/tex] and [tex]b[/tex] are the sides of the triangle and [tex]\theta[/tex] is the angle between those two sides.

The side length are 10, and since its an equilateral triangle, the angle is 60 degrees. Thus, the area becomes [tex]\frac{1}{2}(10)(10)\textrm{sin}(60)=25\sqrt{3}=43.3\ \mathrm{units}[/tex]

PLZ HELP I WILL MAKE YOU BRAINLIEST NO FAKE LINKS

Answers

Answer:

1/30 of an hour

Step-by-step explanation:

helppppppppppppppppp

Answers

Answer: x > 4

x > 4 would look like that on the graph. If it was x is greater than or equal to 4, then the circle would be completely filled in. Hope this helped!

3
To create privacy during testing, a window that measures 3.55 m by 2.28 m needs to be covered. All you have is sheets of paper which measure 21.6 cm by 28 cm. How many sheets of paper will it take to cover the window? answer rlly quick plzz

Answers

Answer:

2 sheets, or at least 1.34.

Step-by-step explanation:

What we need to do, is figure out the exact area of the window, and the area of the paper sheets. Then, we must convert meters to centimeters, in order to be correct.

Consider R to be the total area of the window.

Consider A to be the area of each sheet of paper.

3.55m * 2.28m = R

8.094m = R

21.6cm * 28cm = A

604.8cm = A

Now, we should convert meters to centimeters.

8.094m = 809.4cm

Then we'd divide to find out how much paper will be required

809.4 ÷604.8 = ≈ 1.34

So, they'll need want to have at least 1.34 sheets of paper, which isn't too unrealistic, but if we're looking for whole sheets, then they will need 2 sheets of paper.

Have a nice day, fam. Spread The Love.

What is integration of 3x^2

Answers

3*x^3/3+C is a good one

1) Solve 2 + 7x + 12 = 0 using factoring and the zero product property.

a) Factor2+7x+12

b) Use the zero product property to solve for x







b) Use the zero product property to solve for x

Answers

Answer:

7x+14=0, 7x=-14, x= -2

Step-by-step explanation:

add like terms, then get x on one side, number on the other, then divide both sides by 7

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