what is the formula of mean ???? pls explain​

Answers

Answer 1

Answer:

Mean is fairly simple. You add up all the numbers, then divide it by how many numbers you have.

Step-by-step explanation:

Take for example, you have 1, 2, 3, 4, 5

Add all those numbers up.

1+2+3+4+5

You get 15.

To get the mean, you simply divide 15 by 5.

Why?

Because there are 5 numbers present.

Answer 2

In simple words,

[tex]mean \: = \: \frac{sum \: of \: the \: observations}{no. \: of \: observations} [/tex]


Related Questions

Slope Intercept Form

Answers

Answer:

Y = mx + b

Step-by-step explanation:

Is this what you asked for???

answer: y=mx+b



explanation:

how do i evaluate p=2l+2w if l=5 and w =3

Answers

Answer: p = 16

Step-by-step explanation:

Replace the I with 5 and the W with 3.

2(5) + 2(3) = 10 + 6 = 16

The sums of _____ integers can be either positive or negative.

Answers

Answer:

positive and negative integers

NEED RN, WORTH 30! ~ please and thank you! <3

the first photo is number one, and the second photo is number two :)

Answers

Answer:

It's the third one down for both of them.

Step-by-step explanation:

1. first count the spaces from each intersection, starting with down. #1 has a slope of 2/3. Since it's leaning to the left, it's a negative. The only one with -2/3 is the third option down.

2. Again, look at the slope. this one is 2/1 (or just 2), and is leaning to the left, so is negative. Since there are multiple with -2 as the slope, we then look at the y-intercept. It's -1. The only answer that lines up perfectly with what we have is the third one down.

Your team is in charge of games at the Amusement Park. One of the games involves a robotic arm that randomly grabs a stuffed animal out of a large bin. You need to set up the game so that the probability of a customer’s grabbing a teddy bear is exactly 1/2


a. how would you set up the bin? Explain.


B. What if you returned to check on the bin and found that there are 4 teddy bears left and 12 other animals? What could you add to or remove from the bin to return the probability of selecting a teddy bear to 1/2?

Answers

Answer:

a. I would put 20 stuffed animals in the bin, out of which 10 would be teddy bears.

So that the probability is 10/20 = 1/2

b. I could remove 8 other animals from 12 to have 4. So that the total number of stuffed animals is 8. 4/8 = 1/2

Step-by-step explanation:

a. Probability =

number of required outcomes / number of possible outcomes

If in the bin there are 10 teddy bears out of 20 stuffed animals,

Then the probability of picking a teddy bear = 10/20 = 1/2.

b. If on returning, there are 4 teddy bears and 12 other animals, I could simply remove 8 of the other animals to have 4 other animals and a total of 8 stuffed animals.

Probability = 4/8 = 1/2

Which values or a,b,and,c correctly represent the answer in simplest form 3 1/2 divided by 2 1/4 = a b/c

Answers

Answer: 1 5/9

Step-by-step explanation:

What value
cannot be
included in
The domain
3x+1
2x+10

Answers

Answer:

x= 9

Step-by-step explanation:

Solve the equation.
p-13 over 14 = -3

Answers

Answer:

p = -29

Step-by-step explanation:

p-13/14 = -13

~Simplify

1/14p - 13/14 = -3

~Add 13/14 to both sides

1/14p = -29/14

~Multiply 14 to both sides

p = -29

Best of Luck!

So each camper will get ½ cup of juice.
A=2 cups concentarte:3 cups water
B=5 cups concentrate:9 cups water
C=1 cup concentrate:2 cups water
D=3 cups concentrate:5 cups water
1. How many batches are needed to make 240 campers?
Please label it if its Mix: A, B, C, D
Please help meeeee

Answers

I think the answer is C

chris has a collection of dimes and quarters worth $4.25. if she has 23 coins total, how many quarters does she have.

Answers

Answer:

b

Step-by-step explanation:

Can ΔTSR and ΔQRS be proven congruent by SAS?

yes, because along with the given information on the diagram, SR ≅ RS by the reflexive property
yes, because a reflection will map ΔTSR onto ΔQRS
yes, because P appears to be the midpoint of SQ and TR
no, because not enough is information given to prove the triangles congruent by SAS

Answers

Answer:

d. No, because not enough is information given to prove the triangles congruent by SAS

Step-by-step explanation:

It doesnt give u measures of some important angles. I also got it right

Answer:

D. no, because not enough is information given to prove the triangles congruent by SAS

Step-by-step explanation:

edge2021

can anyone help me please?

Answers

Answer:

There is not enough information to say.

Step-by-step explanation:

Even though they have two sides that are identical in length, the third side could be any number, based on the angles of the triangle. Since we do not know the angles, there is no way of knowing the length of the third side.  

Answer:

A,yes they are congruent triangles because they have same shapes and also same numbers

Step-by-step explanation:

what is X for this 2x+7-6x=23

Answers

Answer:

[tex]x=-4[/tex]

Step-by-step explanation:

[tex]2x+7-6x=23[/tex]

[tex]-4x+7=23[/tex]

[tex]-4x=16[/tex]

[tex]x=-4[/tex]

Answer:

x=-4

Step-by-step explanation:

2x+7−6x=23

Step 1: Simplify both sides of the equation.

2x+7−6x=23

2x+7+−6x=23

(2x+−6x)+(7)=23(Combine Like Terms)

−4x+7=23

−4x+7=23

Step 2: Subtract 7 from both sides.

−4x+7−7=23−7

−4x=16

Step 3: Divide both sides by -4.

−4x

−4

=

16

−4

x=−4

The record of an athlete shows that she scores 0.82 of the points she attempts to make. What is the probability that she makes her first point on attempt number 4?

Answers

Answer:

The probability is 0.00478224

Step-by-step explanation:

Probability of scoring an attempt is 0.82

Probability of not is 1-0.82 = 0.18

So making the first point in attempt number 4 means that she failed the first three

So we have the probability as;

0.18 * 0.18 * 0.18 * 0.82 = 0.00478224

(7TH GRADE LEVEL) Please complete Number 15 all parts.

Answers

Answer:

A - 12

B - 12

C - (-2)

D - (-24)

E - 2

F - (-4)

G - 12

H - (-64)

Hope this helps!

Evaluate 8-m/n+p^2when m=8,n=2,p=7

Answers

Answer:7 43/51

Step-by-step explanation:

The value of the given expression after the substitution method is 53 and this can be determined by using the arithmetic operations.

Given :

Expression  --  [tex]8-\dfrac{m}{n}+p^2[/tex]

The following steps can be used in order to evaluate the given expression:

Step 1 - Write the given expression and equate it to a variable 'a'.

[tex]a = 8-\dfrac{m}{n}+p^2[/tex]

Step 2 - Now, substitute the values of m, n, and p in the above expression.

[tex]a=8-\dfrac{8}{2}+(7)^2[/tex]

Step 3 - Simplify the above expression.

[tex]a=8-4+49[/tex]

[tex]a = 53[/tex]

The value of the given expression after the substitution method is 53.

For more information, refer to the link given below:

https://brainly.com/question/25834626

20 POINTS PLEASE HELP ME.
(You have to also explain the reasoning you used to find the expression)

Answers

9514 1404 393

Answer:

  560 +32x

Step-by-step explanation:

There are a number of ways the area can be subdivided. In order to minimize the number of expressions involving x, we choose to divide it this way:

Create a rectangle 52 yd by 40 yd that encloses the figure along with the empty space above the left side of the figure.

Subtract a rectangle whose dimensions are (40-x) by (52 -20) in the upper left corner of the previous rectangle.

Subtract a rectangle whose dimensions are 10 by 24 in the center of the figure.

Then the total area of the parking lot is ...

  52·40 -(40-x)(32) -10·24 = 2080 -1280 +32x -240 = 560 +32x

The area of the parking lot is 560+32x square yards.

The ratio of boys to girls in a class is 2:3. There are 30 students in the class. How many more girls than boys are there?​

Answers

Answer:

boys: 12

girls: 18

Step-by-step explanation:

2+3=5

30/5=6

boys: 6*2=12

girls: 6*3=18

to be sure...

12+18=30

PLZZ HELPP I HAVE TO GO SOMEWHERE RN ASAP! (:
Which statement is true about the theory of plate tectonics and the theory of continental drift?

A. The theory of plate tectonics explains how continental movements could occur.

B. The theory of plate tectonics tells exactly where the continents were before Pangaea divided.

C. The theory of plate tectonics shows that continental movements could not have happened.

D. The theory of plate tectonics shows that Pangaea was impossible, but the continents did move.

Answers

The correct answer is ...

D
the answer is gonna be

D

Pablo has completed 44 deliveries so far this week. He needs to make 55 deliveries for the week. What
percentage of his deliveries has Pablo completed?

Answers

Answer:

80%

Step-by-step explanation:

step one:

completed delivery = 44

total delivery to be made= 55

Step two

Required is the percentage completed

the formula is

=completed/total*100

=44/55*100

=0.8*100

=80%

Hence  Pablo has completed 80% of the deliveries so far

Need help. (please look at the image file)

Answers

The answer is A :) I’m 100% sure

Ms. Cruz has a tank with 11 fish. After buying two more, she has 2 less than triple the amount of fish Ms. Montesinos has. How many fish does Ms. Montesinos have in her tank?

a) Write a let statement below to define your variable(s):

b) Set up an equation using the variable you defined in (a):

c) Solve your equation & Check. How many fish does Ms. Montesinos have? JUST TYPE THE NUMBER. EXAMPLE: IF SHE HAS 17 FISH JUST TYPE "17"

d) Upload a picture of your SOLUTION & CHECK.

plzz help mee

Answers

Answer:

a) Write a let statement below to define your variable(s):

Let the number of fishes Ms. Montesinos has be represented by = f

b) Set up an equation using the variable you defined in (a):

The equation is :

3f - 2 = 13

c) Solve your equation & Check. How many fish does Ms. Montesinos have?

Ms. Montesinos has 5 fishes

Step-by-step explanation:

Ms. Cruz has a tank with 11 fish. After buying two more, she has 2 less than triple the amount of fish Ms. Montesinos has. How many fish does Ms. Montesinos have in her tank?

a) Write a let statement below to define your variable(s):

Let the number of fishes Ms. Montesinos has be represented by = f

b) Set up an equation using the variable you defined in (a):

We are told in the question:

Ms. Cruz has a tank with 11 fish. After buying two more, she has 2 less than triple the amount of fish Ms. Montesinos has.

Therefore,

3× f - 2 = 11 + 2

The equation is :

3f - 2 = 13

c) Solve your equation & Check. How many fish does Ms. Montesinos have?

Solving the above equation:

3f - 2 = 13

3f = 13 + 2

3f = 15

Divide both sides by 3

3f/3 = 15/3

f = 5

Hence, Ms. Montesinos has 5 fishes

Kristi gets $10 a week from her parents if she washes the dishes after dinner every night. Kristi has saved up $30 over the last few weeks from her allowance. She wants to continue saving her allowance until she has enough money to buy the $70 bike she saw at the store last week. Assuming Kristi receives her allowance every week, write an equation that shows how many more weeks Kristi has to save her allowance to buy the bike, where w is the number of weeks.

Answers

Answer:

4

Step-by-step explanation:

70=10w+30

70 is the total she needs for the bike, 10 is the total amount of dollars she gets per week, w is the total numbers of weeks she worked, and 30 is the total amount of money she already has.

pls complete it (picture)​

Answers

Answer:

1. Perimeter: 26 Area: 30

2. Perimeter: 20 Area: 25

3. Perimeter: 38 Area: 144

Step-by-step explanation:

Perimeter you add all the sides and area you multiply length times height.

Which of the following is not a factor that affects your auto insurance premiums?
a year, make, and model of your car
b. where you live
c. the color of your car
d. overall value of your car

Answers

The option that is not a factor that affects your auto insurance premiums is; C: The Colour of your Car

What is Insurance Premium?

The amount you'll pay for car insurance is determined by a number of  factors. Now, the factors that mainly determines the bottom line on your auto policy include;

Your driving record.How much you use your carYour ageLocationGenderThe car you driveYour Credit ScoreThe type and amount of auto insurance coverage

Now, looking at the various factors and comparing to the given options, the only odd one out is the colour of your car.

Read more about Insurance Premiums at;https://brainly.com/question/1191977

The color of your car is not a factor that affects your auto insurance premiums.

Option C is the correct answer.

What is auto insurance?

Auto insurance premiums are calculated based on a variety of factors, including the year, make, and model of your car, where you live, your driving history, your age, and the overall value of your car.

We have,

Insurance companies use statistical models to assess the risk associated with insuring a particular driver and car, and these models take into account a wide range of factors that are known to impact accident rates and insurance claims.

However, the color of your car is not typically considered a significant factor in determining insurance premiums.

While some people believe that red cars or other bright colors may be more likely to get pulled over or be involved in accidents, there is little evidence to support this idea.

Insurance companies are more concerned with the make and model of your car, as well as other factors that are known to impact risk.

Thus,

The color of your car is not a factor that affects your auto insurance premiums.

Learn more about auto insurance here:

https://brainly.com/question/27302614

#SPJ5

How do you calculate slope using a graph?

Answers

Answer: Determine the difference in y- coordinates of these two points

Step-by-step explanation:

rise over run, but the mathematical way is to do y2-y1/x2-x1

suppose a triangle has sides 1,1,1 which of the following must be true

Answers

Answer:

1

Step-by-step explanation:

The number of bacteria at the beginning of an experiment was 30 and the bacteria
grow at an hourly rate of 1.4 percent. Using the model given by A(t) = A0e^kt,
estimate the number of bacteria, rounded to the nearest whole number after 20 hours.

Answers

Answer:

The answer is 49,197

Step-by-step explanation:

I multiplied the previous number by 1.4, 20 times.

function

not a function

cannot tell from given representation ​

Answers

Answer:

it is because all the x values correspond to one number

Step-by-step explanation:

Hey can somebody plz help me with this question plz ?

Answers

Answer:

i think its 90 cuz they seem perpendicular

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