¿que es una estadística?​

Answers

Answer 1
Ciencia que utiliza conjuntos de datos numéricos para obtener, a partir de ellos, inferencias basadas en el cálculo de probabilidades.

Related Questions

X=27?54?61
Hellpppp plz only serious answers

Answers

Answer: I’m pretty sure your right

Step-by-step explanation:

sorry if I’m wrong

Answer:

You are right

Step-by-step explanation:

A box contains 16 chocolates, of which
3 are known to contain nuts.
Two chocolates are selected at random.
a. Find the probability that
a exactly one chocolate contains
nuts

b at least one chocolate contains
nuts.

Answers

Answer:

3/16??? and 1/16???

Step-by-step explanation:

im so sorry this might be wrong

The probability that a exactly one chocolate contains nuts is 3/16 and probability that at least one chocolate contains nuts is 0.339.

How to calculate probability ?

Probability is calculated by dividing the number of possible outcomes by the total number of possible outcomes. Probability and odds are two distinct concepts. Odds are calculated by dividing the probability of something happening by the probability of it not happening.

When you calculate probability, you are estimating the likelihood of something occurring and representing it with a precise number.

The probability that a exactly one chocolate contains nuts

No of total chocolates = 16 chocolates

No of chocolates contain nuts = 3

The probability that a exactly one chocolate contains nuts = 3/16

Probability that  at least one chocolate contains nuts is

P(at least one contains nut) = 1 – P(given contains no nuts )^n

P(at least one contains nut) = 1 – (0.8125)^2

P(at least one contains nut) = 0.339

Probability that  at least one chocolate contains nuts = 0.339

To learn more about Probability refer :

https://brainly.com/question/251701

#SPJ2

what is the symbolic representation for this argument

Answers

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

suppose f(×) = 2^×, sketch a graph of f(×) and f^-1(×)​

Answers

Let f(x) = y

y = 2^x

x = 2^y

Solve for y.

ln x = ln(2^y)

ln x = y ln 2

ln x/ln 2 = y

Replace y with f^(-1) x.

f^(-1) x = ln x/ln 2

We now know f(x) and f^(-1) x.

Use your graphing calculator to graph the function and its inverse on the same xy-plane. If you don't have a graphing calculator, use DESMOS online.

Good luck.  

1. What is the probability that three or more copies will be demanded in a particular day?
a. 0.14
b. 0.20
c. 0.64
d. 1

Answers

Answer:

C. 0.64

Step-by-step explanation:

Sana makatulong :-)

Please help me ill mark brainlyest if correct

Answers

Answer:

50m²

Explanation:

first, we have to find the length and width of the backyard. since 4cm represents 5m, we know that the real width of the backyard is 5m.

as for the length of the backyard, 8cm is double of 4cm so we can also double 5m to get 10m.

now, we can find the area by taking 5m × 10m = 50m².

i hope this helps! :D

Instructions require you to dilute a powder in 3 quarts of water. You only have a container that is marked in liters. How many liters would you use to dilute the powder?

Answers

Answer:

1 quart = .947 L

3 Q = 2.841 L

So you should use 2.841 L to dissolve the powder

One quartz is equal to 32 oz, then 2.88 liters of water are used to dilute the powder.

What is a conversion of units?

The unit conversion deals with the operation to change one form of the unit to another form of unit.

Instructions require you to dilute a powder in 3 quarts of water. You only have a container that is marked in liters.

We know that

1 quartz = 32 oz

3 quartz = 96 oz

Since 30 milliliters per oz

Then

30 milliliters × 96 oz = 2880 milliliters

Since 1000 milliliters per liter, then we have

[tex]\rm \dfrac{2880}{1000}=2.88\ liters[/tex]

2.88 liters are used to dilute the powder.

More about the conversion of a unit link is given below.

https://brainly.com/question/655411

Please help I’ll mark you as brainliest if correct!

Answers

Answer:

the anwer is C.

Step-by-step explanation:

Answer:

190.50

Step-by-step explanation: 6 ft. 3in divided by 2.54

What is the product of 2.8 and 2.9? a.) 0.618 b.) 6.18 c.) 9.512 d.) 3.608​

Answers

Answer:

its a

Step-by-step explanation:

10 POINT PLEASE HELP ME

Answers

Answer:

9.0

Step-by-step explanation:

The number of light bulbs produced by a company can be modeled by the expression
15x^3+16x^2–100x+51, where x is the number of years passed since 1980. The number of companies
purchasing the light bulbs is represented by 5x–3. Which is the expression representing the average number
of light bulbs purchased per company?

Answers

Answer:

Expression is 3x² + 5x - 17

Step-by-step explanation:

We are told the number of lights produced by a company is;

Number of lights = 15x^3 + 16x^2 – 100x + 51

Also, number of companies that purchased the light bulbs is 5x - 3.

Thus;

The average number of bulbs purchased per company = (15x^3 + 16x^2 – 100x + 51)/(5x - 3)

I have attached the calculation using long division method to get;

3x² + 5x - 17

Need help on this please still lost on this

Answers

Step-by-step explanation:

Area of Circle =

[tex]\pi {r}^{2} \\ = \pi {(4)}^{2} \\ = 16\pi {km}^{2} [/tex]

answer..................

Evie buys an energy drink
The can is 12 cm high and the diameter is 5 cm.
Use 1-3
+5 cm
12 cm
SINH
Using the formula V = 12h, work out the volume of the can.
Give the units of your answer.
Select...

Answers

ngl I think you'll have to format it clearer, cause I have no clue what's happening

A cone has a height of 7.25 cm and a base with a radius of 4.5 cm.
What is the approximate volume of the cone?
A. 32.63 cm
B. 102.44 cm
C. 146.81 cm3
D. 153.66 cm3

Answers

Answer:

v=1\3hπr3

Step-by-step explanation:

1/3×,22/7×4.5×4.5××7.25

=153.66cm3

if each quadrilateral below is a square, find the missing measures.

please help :(

Answers

vu=15 su=square root 450 TV= square root 450 SW= squareroot 450/2

We want to find the missing measures for the given square.

VU = 15TV = 21.2SU = 21.2SW = 10.6

Working with squares.

We know that squares have the same length in all of their 4 sides, with that in mind we can see that:

TS = TU = UV = SV = 15

Then we can already complete:

VU = 15

Now we need the two diagonals, SU and TV.

The diagonal for a square of side length s is:

diagonal = (√2)s

Then the diagonals for our square are:

TV = SU = (√2)*15 = 21.2

And SW is half of the diagonal, so we have:

SW = 21.2/2 = 10.6

If you want to learn more about squares, you can read:

https://brainly.com/question/4916384

900 students attend Ridge wood Junior High School. 25% of students bring their lunch to school everyday. How many students brought their lunch to school on Thursday

Answers

Answer:

225 students

Step-by-step explanation:

Total number of students = 900 students

percent that bring lunch to school everyday = 25%

Number of student that bring lunch to school = 25% of 900

Number of student that bring lunch to school = 0.25 * 900

Number of student that bring lunch to school = 225

Hence 225 students bring lunch to school everyday

If anyone knows this I will give them brainiest

Answers

Answer:

x = 12

m(QS) = 52°

m(PD) = 152°

Step-by-step explanation:

Recall: Angle formed by two secants outside a circle = ½(the difference of the intercepted arcs)

Thus:

m<R = ½[m(PD) - m(QS)]

50° = ½[(12x + 8) - (4x + 4)] => substitution

Solve for x

Multiply both sides by 2

2*50 = (12x + 8) - (4x + 4)

100 = (12x + 8) - (4x + 4)

100 = 12x + 8 - 4x - 4 (distributive property)

Add like terms

100 = 8x + 4

100 - 4 = 8x

96 = 8x

96/8 = x

12 = x

x = 12

✔️m(QS) = 4x + 4 = 4(12) + 4 = 52°

✔️m(PD) = 12x + 8 = 12(12) + 8 = 152°

Can someone please help me sorry it’s kinda hard to see

Answers

Answer:

C.

Step-by-step explanation:

each edge/vertex was taken 2 units to the right and 8 units down to make the figure M'

I traced it to make sure

hope this helps <3

Answer:

C.

Step-by-step explanation:

each edge/vertex was taken 2 units to the right and 8 units down to make the figure M'

I traced it to make sure

hope this helps <3

Solve the Linear-Quadratic System of Inequalities. Shade the solution on the graph provided.

y > x^2 - 1
-1/2x + 3 < y

Answers

Answer:

We have the system:

y > x^2 - 1

y < (-1/2)*x + 3

To find the solutions of this set we need to graph the solutions range of both sets, and see the intersection between these solution ranges.

How we do it?

Start with the first one.

First, we graph the equation:

y = x^2 - 1

Now because we are using the symbol ">" means that y is smaller than the thing at the right, then the graph of the equation will be with a dashed line (which means that the points on the line are not solutions) and we will shade all the region above the line

For the other inequality we do the same:

First we graph:

y = (-1/2)*x + 3

And because we have the symbol "<" we again use a dashed line, but this time we will shade all the region below the line.

Once we shaded both regions, the region where we have both shades will be the region of solutions for the system of inequalities.

You can see the graph below.

Please help solve, 7th grade work (see image)

Answers

Answer:

F) 63

Step-by-step explanation:

Find the original total stories 10 + 8 + 16 + 8 = 42.

Original ratio of Mary's stories to total stories is 8/42 or 4/21.

Then form equation 4/21 = 12/x ; multiply both sides of 4/21 by 3.

4/21 = 12/63

The students need to write 63 stories to keep the ratio of Mary's stories to total stories the same.

Without graphing the equations, decide whether the system has one solution, no solution, or infinitely many solutions.
2y = x - 7
5x - 4y = 14
How many solutions does the system have?
A. Infinitely many solutions
B. One solution
C. No solution

Answers

it has one solution

Which functions are not one-to-one functions?
o f(x)=1/x+2
O g() = 7.–9
Om(x)= 14–13+8r-1
on(x)=(x+61

Answers

I think Om(x)=14-13+8t-1

solve 7x+4/3x+2= -4/3​

Answers

Answer:

7x+4/3x+2= -4/3 don't know

Solve the equation below, remember to check for extraneous solutions.

Answers

Answer:

2.66x + 18 = -3

Step-by-step explanation:

What is 468,839 rounded to the nearest hundred thousand?

Answers

Answer:

500,000

Step-by-step explanation:

Answer:

500,000

hope this is right

Please help I’ll mark you as brainliest if correct

Answers

Answer:

c-6 1/2

Step-by-step explanation:

260 divided by 40=6.5

6.5=6 1/2

hope this helps

plz can i get brainliest.

Which rule describes the x-coordinates in the translation below?.

O x + 0
O x + 6
O x-6
O X+2

Answers

i think it would be x+2

Use the triangles below to answer the question.

1) Which angle corresponds to angle K?

A. Angle W


B. Angle L


C. Angle X


D. Angle Y

Answers

Answer:

i think a) W

...................................hope this helps

Answer:

Hi! The answer to your question is C. Angle X

Step-by-step explanation:

If you flip the picture they're both the same, at that point look for K and find something identical to it, and that means that it corresponds.

❣❣❣❣❣❣❣❣❣❣❣❣❣❣

- Brooklynn Deka

Hope this helps!!

⁅❣Brainliest would be greatly appreciated!❣⁆

17-3/4 17-3/4 just that​

Answers

Answer: 264.0625

Step-by-step explanation:

let me know if im wrong

What is the factorization of x^2 + x - 20 *
a. (X - 5)(x-4)
b.(x + 5)(x - 4)
c. (x + 5)(x + 4)
d.You cannot factor this​

Answers

Answer:

B......had to edit my answer.......................

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