According to the DuPont 2012 Global Automotive Color Popularity Report, 23% of all cars manufactured in 2012 were white. In a random sample of 100 cars parked in long-term parking at Philadelphia International Airport, 19% of the cars were white. Identify the underlined values as parameters or statistics and give the appropriate variable. Spell out phat, x-bar, mu, sigma for the variable names. Which of the following statements istrue?

a. 19% and 23% are parameters, 100 is a statistic.
b. 23% is a parameter, 19% is a statistic.
c. 23% is a statistic, 19% is a parameter.
d. 19% and 23% are statistics, 100 is neither a parameter nor a statistic.
e. 19%, 23%, and 100 are all statistics.

Answers

Answer 1

Answer:

b. 23% is a parameter, 19% is a statistic.

Step-by-step explanation:

If the value is from a population, it is a parameter.

Otherwise, if the value is from a sample, it is a statistic.

23% of all cars manufactured in 2012 were white.

This is from the population(all cars), so 23% is a parameter.

In a random sample of 100 cars parked in long-term parking at Philadelphia International Airport, 19% of the cars were white.

100 is the size of the sample, which is neither a parameter, nor a statistic.

19% is from the sample of 100, so it is a statistic.

The correct answer is given by option b.


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In 2012, 31% of all traffic fatalities involved a drunk driver. Suppose a random sample of 400 traffic
fatalities is taken. Determine the probability that 132 or fewer of the 400 traffic fatalities involved
a drunk driver.

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My name is Ankush kumar I am A boy

solve the inequality 3(2x+7)>-3+5x.​

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Answer:

Check pdf

Step-by-step explanation:


A rectangular flag has an area of 3/8 square foot. The width is 3/4 foot. What is the length of the flag?

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Answer:

1/2

Step-by-step explanation:

Area= 3/8

Width=3/4

Length=?

3/8=0.375

3/4x1/2=3/8 (0.375)

Solve and show work please! Help is appreciated ♥️

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Answer:

16 pi

Step-by-step explanation:

Since 2r is the circumference and the radius is 8, it's 8 x 2 which gives you 16. You don't need to add in the pi since they already gave you at the options.

this is a math question find the complement of 50 degree​

Answers

Given:

The measure of an angle is 50 degrees.

To find:

The complement of the given angle.

Solution:

We know that the sum of an angle and its complement is 90 degrees.

Let x be the complement angle of 50 degrees.

[tex]x+50^\circ=90^\circ[/tex]

[tex]x=90^\circ-50^\circ[/tex]

[tex]x=40^\circ[/tex]

Therefore, the measure of complement of the given angle is 40 degrees.

can you please help me with this question?​

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Answer:

I have made it in above picture

hope it helps

ABC
180 - 28 = x

DEF
180 - 25 - 20

5. What is the volume of the figure below?
18 cm
5 cm
12 cm
A. 180 cm
B. 540 cm
13 cm
C. 380 cm2
D. 360 cm3

Answers

Answer:

732

Step-by-step explanation:

\the incenter is a point of

Answers

Step-by-step explanation:

The point formed at the intersection of the three angle bisectors of a triangle; also the centre of the incircle.

the person on top of me is correct !

4/k = 6/11
solve for k

Answers

Answer:

k=7.3

Step-by-step explanation:

6k=44

k= 44÷6

k=7.3

PLZ HELP DUE IN 8 MINS PLZ HELP

Answers

Answer: for number 1 its negative 14

Step-by-step explanation:

Select the correct answer.
What is the range of the function graphed below?
у
8
6
-
2
-4
HX
- 2
2
4
6
2
4
-6
OA - < y < -2

Answers

Answer:

B

Step-by-step explanation:

The range of the function is - ∞ < y < 2

How to determine the range?

The range of the function are the set of output values of the function.

From the given graph, the values of the graph increases from negative infinity and ends at 2

So, the range of the function is - ∞ < y < 2

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What number must you add to complete the square?
x2 + 16x = 3
O A. 16
B. 36
O C. 64
O D. 72

Answers

What number must you add to x² + 16x = 3 to complete the square 64: Option C

What is a perfect square?

You should be aware that a perfect square is a term that has two common factors

The given equation is x² + 16x = 3

To make the equation a perfect square, Add the square of half of the coefficient of s to both sides

This is to say that (16/2)² = 8² = 64

The equation becomes x²+16x+64 = 3+64

Then you can factorize the equation and simplify the right hand side

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Progress:
The movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on
Solve and graph the following inequality: 4x + 5 > 13

Answers

Answer:

Option (1)

Step-by-step explanation:

Given inequality is.

4x + 5 ≥ 13

We will further solve this inequality,

(4x + 5) - 5 ≥ 13 - 5

4x ≥ 8

[tex]\frac{4x}{4}\geq \frac{8}{4}[/tex]

x ≥ 2

Therefore, on a number line solution of x will be all values of x greater than equal to 2.

Which will be represented by and arrow starting with a solid point from x = 2 directing towards numbers greater than 2.

Option (1) will be the answer.

Which expressions are equivalent to the one below? Check all that apply. 9^x
a. 3^x•3^x
b. 3•3^2x
c.3^2•3^x
d.(3•3)^x
e.3^2x
f. 3•3^x

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Answer:

using law of indices, A,D and E.

Solve for the unknown in the following diagram. Round the answer to two decimal places.
cm​

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Answer:

Step-by-step explanation:

Make a equation for the scatter plot line

Answers

Answer:

y = -7.2x + 540

Step-by-step explanation:

to find the slope I used the x-and-y intercepts: (0, 540) and (75, 0)

slope = 540/-75 or -7.2

2|2x-6|=20

How the hell do you do this guys :(

Answers

Its 8
2x -6 =10
2x= 10+6
2x=16
X= 8

Answer:

x1 = -2, x2 = 8

Step-by-step explanation:

You can first divide both sides of the equation by 2 so now you have:

I 2x - 6 I = 10

Then use the absolute value definiton and rewrite it into two separate equations:

1.) 2x - 6 = -10

2.) 2x - 6 = 10

From here you can solve both equations:

1.) x = -2

2.) x = 8

i hoped this helps

If a hummingbird hunted like an eagle, would its beak be useful?

Answers

Answer:

No

Step-by-step explanation:

If you make a batch of cookies and your sister eats 10% of them, what percent remains?

Answers

Answer:

I love cookies

Step-by-step explanation:

Answer:

90%

Step-by-step explanation:

1 batch would be the same as 100%

So, 100%-10%=90%

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−10 = 1/5 a
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Answers

Answer:

-50

Step-by-step explanation:

Answer:

a = -50

Step-by-step explanation:

-10 = 1/5a

multiply both sides of the equation by 5:

a = -50

Which fraction is equivalent to a repeating decimal? A. 1/8 B. 2/8 C. 14/21 D. 3/10​

Answers

Answer:

C

Step-by-step explanation:

14/21 = 2/3 = .666666666666666666666.....7

what is the rounded number of 305?​

Answers

Answer:310

Step-by-step explanation:

what are you rounding it to ?

A pair of athletic shoes costs ​90$. If the inflation rate remains constant at 4​%, write an algebraic rule to determine the​ cost, c(t), of the shoes after t years. ​c(t) =

REALLY NEED THIS ANSWER

Answers

Answer:

c(t)=90+90×0,04t

c(t)=3,6t + 90

A and B are independent events, A and C are dependent. P(A|B) = 0.3, P(A|C) = 0.2. Find P(A).

Round your answer to the nearest tenth.

Answers

Answer:

P(A) = 0.3

Step-by-step explanation:

independent event:

P(A|B) = P(A) = 0.3

The value of P(A) is equal to 0.3 to the nearest tenth.

Which pair of events are called independent events?

When one event's occurrence or non-occurrence doesn't affect the occurrence or non-occurrence of another event, then such events are called independent events. Comparing it with the chain rule will give

[tex]P(A|B) = P(A)\\P(B|A) = P(B)[/tex]

It is showing that whether one occurred or not, the other one doesn't care about it (independence).

Given that A and B are independent events, A and C are dependent. P(A|B) = 0.3,

P(A|C) = 0.2.

We know that for the independent event:

P(A|B) = P(A)

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WILL GIVE BRAINLESS
what is the missing number of 4:9=36:

Answers

Answer:

81

Step-by-step explanation:

4 : 9

36 : ?

to get from 4 to 36, you multiply 9

9 x 9 = 81

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Answers

Answer:

the answer is 38

Step-by-step explanation:

103 + 39 + 38= 180, the degree of a triangle



PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
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Answers

Answer:

C

Step-by-step explanation:

Evolution is where organisms have developed over time from simple to complex. Therefore we can rule out D because older rock layers should have simple organisms and A because new rock layers should have more complex organisms. The previous organisms will be unlike those of today, therefore the correct answer is C.

Joe has $70 in a savings account. The interest rate is 10% per year and is not compounded,
How much interest will he earn in 4 years?
Use the formula i = prt, where / is the interest earned, p is the principal (starting amount),
is the interest rate expressed as a decimal, and t is the time in years.

Answers

Answer:

$28

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 10%/100 = 0.1 per year,

then, solving our equation

I = 70 × 0.1 × 4 = 28

I = $ 28.00

The simple interest accumulated

on a principal of $ 70.00

at a rate of 10% per year

for 4 years is $ 28.00.

HEEEELPPPPPPPPP Which properties describe the graph of (x + 5)2 + (y – 10)2 < 169?

Answers

Answer:

circle with center at (–5, 10), shading inside the circle

Step-by-step explanation:

edge2021

Answer:

A. circle with center at (–5, 10), shading inside the circle

there are 60 minutes in a hour.how many minutes are there in 24 hours

Answers

There are 1440 minutes in 1 hour

Step-by-step explanation:

Since there are 60 minutes in 1 hour multiply 60 by 24, you get 1440.

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