please help! I really don't understand!

Please Help! I Really Don't Understand!

Answers

Answer 1
a. yes this is a statistical question. it is a statistical question because you can answer the question by collecting data.


b. some clusters are.. 3,4,5, and 6 they are clusters because they are assembled around a particular value. the peak is 6 because it is the highest number it reaches. there are no gaps in this table.



c. to calculate the average with a graph you sum the numbers then divide by the total number of values in the set. for this table you add 1+2+3+3+4+4+4+5+5+5+5+5+5 then you divide by 15.

1+2+3+3+4+4+4+5+5+5+5+5+5=51

51 ÷ 15= 3.4




Related Questions

Please answer this properly​

Answers

Answer:

1. Fraction = 0.36, 36% and 36/100

A jar contains 10 red marbles 18 blue marbles and 12 white marbles. Which multiplication will halo you find the sorted probability of picking a red marble, replacing it, then picking a blue marble?

Answers

Answer:

[tex]\frac{9}{80}[/tex]

Step-by-step explanation:

So there is 40marbles in total

The probability of picking a red marble first is [tex]\frac{10}{40}[/tex] because there is 10 red marbles out of 40 total marbles

Then you replace it and I'm going to assume that you put the red marble back.

Then you would still have 40 marbles and the probability of picking a blue one is [tex]\frac{18}{40}[/tex] because there is 18 blue marbles.

Then you multiply [tex]\frac{10}{40}[/tex] and [tex]\frac{18}{40}[/tex] and that is [tex]\frac{9}{80}[/tex]

Hope this helps and If I'm wrong pls tell me.

Find the equation of a circle that has a diameter with endpoints given by the points
A(-4,1) & B(4,2).

Answers

Step-by-step explanation:

The endpoints of the diameter are A(-4,1) and B(4,2) . For finding the equation of circle we need to find the centre and the radius.

Coordinates of centre can be find out by the midpoint formula.

[tex] \implies Center = \bigg(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\bigg)\\\\\implies Centre = \bigg(\dfrac{-4+4}{2},\dfrac{1+2}{2}\bigg)\\\\\implies \boxed{\boxed{Centre = (0 , 1.5)}}[/tex]

Now the measure of radius can be obtained by half the distance between them.

[tex]\implies D = \sqrt{ (x_2-x_1)^2+(y_2-y_1)^2}\\\\\implies D =\sqrt{ (4+4)^2+(2-1)^2}\\\\\implies D = \sqrt{ 64 + 1 }\\\\\implies D =\sqrt{65} \\\\\implies \boxed{\boxed{ Radius = \dfrac{\sqrt{65}}{2} }}[/tex]

We know the general equation of circle as ,

[tex]\implies (x-h)^2+(y-k)^2= r^2[/tex]

(h,k) is centre r is radius.

[tex]\implies (x-0)^2+ (y-1.5)^2 = \bigg(\dfrac{\sqrt{65}}{2} \bigg)^2\\\\\implies x^2 + (y-1.5)^2=\dfrac{65}{4} \\\\\implies\boxed{\boxed{ 4x^2+4(y-1.5)^2 = 65 }}[/tex]

The largest possible circle is cut out of a square whose side length is 12 feet. What will be the approximate area, in square feet, of the remaining board?

Answers

Answer:

30.96 ft²

Step-by-step explanation:

area of square = 12 x 12 = 144 ft²

area of circle = (3.14)(6²) = 113.04 ft²

144 - 113.04 = 30.96 ft²

find the area of the shape below
I WILL MARK BRAINLEST!!

Answers

Answer:

25.75 sq units

Step-by-step explanation:

Big triangle = 1/2 * 3.5 * 9 = 15.75

Tiny triangle = .5 * 2 * 2 = 2

Medium triangle = .5 * 2 * 5 = 5

square = 2 * 2

15.75 + 4 + 5 + 2

Your centrifugal pump costs approximately $30 to run each day. Your facility is charged 9.7 cents per kilowatt hour for electricity, and all pumps in your facility use 240 VDC. What is the resistance of the copper wire supplying electricity to this pump?

Answers

Answer:

The resistance of the copper wire supplying electricity to this pump is 0.005 ohm

Step-by-step explanation:

Given

Per day cost of running centrifugal pump is $30

Charge of electricity is 9.7 cents per kilowatt hour

Total electricity power consumed

[tex]\frac{30}{0.097} \\309.278[/tex] kilowatt hour

Current flowing through the pump

[tex]= \frac{309.278}{240} \\= 1.288[/tex]A

Resistance of the pump

[tex]\frac{1.288}{240} \\0.005[/tex] ohm

The resistance of the copper wire supplying electricity to this pump is 0.005 ohm

During a marathon, Jane ran 6 miles. Jessica ran 5.068 miles. How many more miles did Jane run than
Jessica?

Answers

Answer:

0.932 miles

Step-by-step explanation:

To find out the difference we subtract

6 - 5.068 = 0.932

Add the units (miles)

0.932 miles

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

0.9 miles

Step-by-step explanation:

Solve

Given:

Jane = 6 miles

Jessica = 5.068

To find: How many more miles did Jane run than  Jessica

Which is simply the difference between both miles.

So,

6 - 5.068 = 0.932

In the nearest tenths, Jane ran 0.9 miles more than Jessica.

6 times the number of waiters at a restaurant was 6 less than the number of
customers in the restaurant. The number of waiters was 3. How many customers
were there?

Answers

Answer:

12

Step-by-step explanation:

6x3-6=12

Answer:

12 customers

Step-by-step explanation:

6*3=18

18-6=12

So, there were 12 customers

:)

In triangle ABC, AB = 5 inches and BC = 3 inches. Which of the choices represents all possible values for AC, inches?
- 3 < AC < 7
- 3 ≤ AC ≤ 7
- 2 < AC < 8
- 2 ≤ AC ≤ 8

Answers

Answer:

-2 < AC < 8

Step-by-step explanation:

The last side has to be less than the sum of the other 2 sides, or less than 8. The only answer choice with this is the 3rd one.

3(4x – 2.5) = 5(0.4x + 10) + 33
what is the solution? ASAP

Answers

Answer:

3(4x - 2.5) = 5(0.4x + 10) + 33

3•(4•x - 2.5) = 5•(0.4•x + 10) + 33

10x = 90.5

x = 181/ 20

= 9.05

Step-by-step explanation:

9514 1404 393

Answer:

  x = 9.05

Step-by-step explanation:

Start by eliminating parentheses.

  12x -7.5 = 2.0x +50 +33

  10x = 90.5 . . . . . . . . . . . . . add 7.5-2x

  x = 9.05 . . . . . . . . . . divide by 10

How many more orders for cheese were

for 3/4 pound or less than for 1 pound or

more?

Answers

Answer:

1 whole pound silly

Step-by-step explanation:

Answer:

Its 8

Step-by-step explanation:

2
In 2002, there were 450 households in the city of Klean that recycled. Each year since 2002, the number of
households that recycle has grown by 8%. Write a function to represent the number of households
in Klean that recycle x years since 2002.

Answers

Answer:

450 x 1.08 ^ X = N

Step-by-step explanation:

Since in 2002, there were 450 households in the city of Klean that recycled, and each year since 2002, the number of households that recycle has grown by 8%, to write a function to represent the number of households in Klean that recycle X years since 2002 the following mathematical reasoning should be raised:

450 (initial number) x 1.08 (8% is added to the initial number) ^ X (years) = Number of households that recycle

450 x 1.08 ^ X = N

Thus, for example, if said number were calculated in 2007, that is, 5 years after 2002, the equation would apply as follows:

450 x 1.08 ^ 5 = N

450 x 1.4693 = N

661.20 = N

water tank is being filled with water. Before water is pumped in, the water level in the tank is 12 inches high. After 20 minutes, the water level is 54 inches high.
If t represents the time in minutes and h represents the water level, which of the following equations can be used to model this situation?
A. H = 42 + 12t
B. H = 2.1t - 12
C. H = 12t + 2.1
D. H = 2.1t + 12

Answers

Answer:

D. H = 2.1t + 12

Step-by-step explanation:

Let us assume the t be the time in minutes

And h be the water level

Now before reaching to the equation that need to be used

before this, determine the inches per minute i.e.  

= 54 inches - 12 inches

= 42 inches in 20 minutes.

Now for per minute, it would be

= 42 inches ÷ 20 minutes

= 2.1 inches per minute

After this, multiply the inches per minute with the minutes t and add the sale to the beginning value i.e. 12

So the equation is

H = 2.1t + 12

hence, the last option is correct

Five-sixths of Paco's stamps have pictures of animals.

How many stamps with pictures of animals does Paco have? Use the table to answer the question.

Paco has____ stamps with pictures of animals.

Answers

Answer:

20

Step-by-step explanation:

fraction of stamps that has animals on it x total number of stamps paco has = pictures with animals on it

(5/6) x 24 = 20

HELP ASAP! I WILL MARK BRIANLIST! THANK YOU (:

Answers

The answer is 3 just took the test

The point P = (2/5, y) lies on the unit circle shown below. What is the value of y in
simplest form?

Answers

Using the unit circle, it is found that the value of y is given by:

[tex]y = \pm \frac{\sqrt{21}}{5}[/tex]

What is the unit circle?The unit circle is a circle centered at the origin with radius 1, hence, it's equation is given by:

[tex]x^2 + y^2 = 1[/tex]

At point P, we have that [tex]x = \frac{2}{5}[/tex], and hence, we have to find the value of y.

[tex]x^2 + y^2 = 1[/tex]

[tex]\left(\frac{2}{5}\right)^2 + y^2 = 1[/tex]

[tex]\frac{4}{25} + y^2 = 1[/tex]

[tex]y^2 = 1 - \frac{4}{25}[/tex]

[tex]y^2 = \frac{21}{25}[/tex]

[tex]y = \pm \sqrt{\frac{21}{25}}[/tex]

[tex]y = \pm \frac{\sqrt{21}}{5}[/tex]

To learn more about the unit circle, you can take a look at https://brainly.com/question/16852127

Find x, y and p in the given figure​

Answers

Answer:

x=50

y=40

p=130

Step-by-step explanation:

A whole circle is 360 degrees, so 270+40+x = 360. x=50.

Y is the same angle as the 40 degrees above it.

P is the same as y+90, so it's 40+90 = 130.

how much it must decrease 65432 to reach 100000​

Answers

Answer:

165432

Step-by-step explanation:

165432 - 65432 = 100000

Function f(x) has a jump discontinuity at x = 8. Which statement identifies possible one-sided limits at x = 8?

O

lim f(x) DNE and lim F(x) DNE

X-8


tim f(x) DNE and lim f(x) = 120

X-8

Olim f(x) = 85 and lim f(x) = 85

X-8


lim f(x) = 85 and lim f(x) = 120

X 81

Answers

It’s :lim f(x)=85 and lim f(x)=120

The limit of the given functions f(x)=85 and lim f(x)=120.

We have given that,

Function f(x) has a jump discontinuity at x = 8.

We have to determine a statement that identifies possible one-sided limits at x = 8.

What is the meaning of discontinuity?

lack of continuity or cohesion.  gap sense 5. The property of being not mathematically continuous is a point of discontinuity. an instance of being not mathematically continuous, especially a value of an independent variable at which a function is not continuous.

lim f(x)=85 and lim f(x)=120

To learn more about limit visit:

https://brainly.com/question/26867415

#SPJ2

the tallest building in houston in 1,002 feet tall the tallest building in dallas is 307 yards tall which of the following is true F. the dallas building is 27 yd taller than the houston building G. the houston building is 27 yd taller than the dallas building H. the dallas building is 695 ft taller than the houston building J. the houston building is 695 ft taller than the dallas building A. 200 x 80 cm x 1 km/ 1,000 cm B. 200 x 80 cm x 1 cm/ 100 C. 200 x 80 cm x 100cm/1 m x 1,000 m/ 1 km D. 200 x 80 cm x 1 m/ 100 cm x 1 km/ 1,000 m

Answers

Answer:

The tallest building in the city is the Bank of America Plaza, which rises 921 feet (281 m) in Downtown Dallas and was completed in 1985.

Step-by-step explanation:

Answer:

G. the houston building is 27 yd taller than the dallas building

Step-by-step explanation:

1,002 ft

= 334 yards (Houston)

307 yards (Dallas)

F. Incorrect because the Houston building is taller.

G. 334 - 307 = 27 (This is true)

695 ft is not equal to 27 therefore, H and J are not true.

Find the surface area
No link please and thank you

Answers

Answer:

1200 in^2

Step-by-step explanation:

SA = 2B + Ph

SA = 2(8 * 15 / 2) + 40(27)

SA = 1200

Pls help me I don’t know I just need 5 and 6 to be answered

Answers

Answer:

5. Mark had 6 laps and John has 42 laps. So you could do a sentence like: John has 42 laps and Mark has 6 laps. What is the diffrence between the two laps?

6. Im not sure about this one :/. Im truly sorry. :(. Good luck tho!

Step-by-step explanation:

Jerome bowling average ,j, is at or above the leagues average of 100. Witch inequality BEST represents?

Answers

J is more than or equal to 100
J>/= 100

Maya counts 55 passengers on the bus. There were only 50 passengers on the bus. What is Maya's percent error?

Answers

Answer:

I don't know.

Vicki made 3 quarts of lemonade to serve at her party. she will serve the lemonade in glasses that hold 1 cup of liquid each. how many of these glasses can Vicki fill with lemonade? ( giving extra points etc. )

A : 16

B : 12

C : 14

D : 8

Answers

Answer: 12, B

Step-by-step explanation: There are 2 pints in a cup, and two cups in a quart. so 2 plus 2 is 4. 4 times 3 equals 12. so it is 12

With individual lines at its various windows, a post office finds that the standard deviation for normally distributed waiting times for customers on Friday afternoon is 7.2 minutes. To test this claim, the post office experiments with a single, main waiting line and finds that for a random sample of 25 customers, the waiting times for customers have a standard deviation of 3.5 minutes. a) With a significance level of 5 percent, conduct an appropriate test on the claim. (State your null hypothesis, test statistic, critical value, decision rule, conclusion) (15 points) b) What is the 95% confidence interval for the population variance

Answers

Answer:

H0 : σ²= 7.2²

H1 : σ² < 7.2

We can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.

Step-by-step explanation:

H0 : σ²= 7.2²

H1 : σ² < 7.2²

The test statistic :

X² = [(n - 1)*s² ÷ σ²]

s² = 3.5

n = sample size = 25. ; s²

X² = [(25 -1)*3.5² ÷ 7.2²

X² = (24 * 3.5^2) / 7.2^2

X² = 5.67

Pvalue from Chisquare statistic :

P(X² < 5.67) = 0.000042

Pvalue < α ; we reject the Null.

Hence, we can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.

Need help on this Its almost summer need to pass :D

Answers

Answer:

3

Step-by-step explanation:

8*3 + 8*3

(24) + (24) = 48

8*6 = 48

David ordered 210 face masks. 50% of the masks are blue. A fifth of the total masks are white and the remainder are black masks. How many black masks

Answers

Answer:

63

Step-by-step explanation:

50 % of 210 = 105

one fifth of total = 42

black masks = (105+42=) - 210 = 63 ans.

How long is the base of a parallelogram if it has an area of 100 square meters and a height of 5 meters?

Answers

Answer:

Base of parallelogram = 20 meter

Step-by-step explanation:

Given:

Area of parallelogram = 100 square meters

Height of parallelogram = 5 meters

Find:

Base of parallelogram

Computation:

Area of parallelogram = [Base of parallelogram][Height of parallelogram]

By putting value in the formula;

100 =  [Base of parallelogram][5]

Base of parallelogram = 100 / 5

Base of parallelogram = 20 meter

Find the distance between the two numbers on the number
line.

Answers

Answer:

3 1/2

Step-by-step explanation:

|-7| - |-3 1/2| = 3 1/2

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