1. For each of 200 randomly selected cities, Gary recorded the number of churches
in the city (x) and the number of homicides in the past decade (y). He calculated
the linear correlation coefficient and was surprised to find a strong positive linear
correlation for the two variables. Does this suggest that building new churches
causes an increase in the number of homicides? Why do you think that a strong
positive linear correlation coefficient was obtained? Explain your answer with
reference to the term lurking variable.

Answers

Answer 1

Answer:

Kindly check explanation

Step-by-step explanation:

When certain variables are examined, there seems to be a sort of spurious relatuoshipnornassocuation between the two variables, this is evident in the relationship between churches and the number of homicide, when a strong positive correlation is observed between number of churches and number of homicides, this relationship is most likely to be due to the effect of a lurking or third variable which creeped into our analysis, a factor which has a posithe correlation on both number of churches and homicide level, Number of homicide and number of churches could have been correlated by the lncreasing population which may lead to overcrowding and competition Hence increasing rate of homicide, similarly, with high rise in population, the growth of church to accommodate the populees will also creep in.


Related Questions

a mixture of 40 liters of paint is 25% red tint, 30% yellow tint and 45% water. 6 liters of yellow tint are added to the original mixture. the percent of yellow tint in the new mixture is?

Answers

Since 30% of 40 liters=12 liters of yellow tint
10 +40=50 Total mixture, but since we had 12 liters of yellow tint + 10 new liters=22 liters of yellow tint 22/50=44% of the new mixture is yellow tint. :)

Box Y has edges that are the length of the edges of box X

Box X

Box Y

Which statement is true?

O A. The volume of box Y is of the volume of box X

OB. The volume of box Y is

of the volume of box X

O c The volume of box Y is to of the volume of box X.

OD. The volume of box Y is of the volume of box X.

E. The volume of box Y is 256 of the volume of box X.

Answers

Answer:

The volume of box Y is 1/64 of the volume of box X

Step-by-step explanation:

Since. The edge of a box Y is 1/4 the lengtj of box X ;

The volume is 3 dimensional and each dimension of Y is 1/4th the dimension of X

The volume of Y will be (1/4)^3 the volume of Y

(1/4)^3 = 1/4 * 1/4 * 1/4 = 1/64

For instance, if edge of X = 8

Edge of Y which is 1/X ; edge Y = 1/4(8) = 2

Volume, X 8^3 = 512

Volume Y = 2^3 = 8

8/512 = 1 / 64

Xác suất thống kê: Người ta tổng kết các phương pháp chẩn đoán dạ dày tá tràng. Trên lâm sàng chẩn đoán đúng 60%; X-quang 70%; nội soi 80%. Kết hợp cả 3 phương pháp thì khả năng chẩn đoán đúng là bao nhiêu?

Answers

Answer:

Step-by-step explanation:

iam a gay 345366e2673

Miguel went shopping for a new phone. Sales tax where he lives is 4%. What number should he multiply the price of the phone by to find the total plus tax in one step?

Answers

Answer:

miges fue y no me compro el celu

Step-by-step explanation:

mal migel

por culpa de brailyn reverg

Use differentials to estimate the amount of metal in a closed cylindrical can that is 10 cm high and 6 cm in diameter if the metal in the top and the bottom is 0.1 cm thick and the metal in the sides is 0.05 cm thick. (Round your answer to two decimal places.)

Answers

Answer:

14/5 cm3 ??

Step-by-step explanation:

A sample of 260 students enrolled at a university were asked what they intended to do after graduation. The results are shown below.

Bar Graph of Type of Employment


What percentage of students intend to go into state or local government after graduation?

Answers

Hi my name is Fabian and 69% because 69 is a man which is multi colour hair

Two roots of a third degree polynomial function f(x) are -4 and 4. Which statement describes the number and nature of all
roots for this function?
* f(x) has three imaginary roots.
* f(x) has three real roots.
* f(x) has two real roots and two imaginary roots.
* f(x) has three real roots and one imaginary root.

Answers

Answer:

f(x) has three real roots.

Step-by-step explanation:

f(x) has three real roots.

A third degree polynomial function with real coefficients has exactly 3 roots.

Furthermore, all complex roots come in pairs, either there is none, or there are exactly two conjugates, which are in the form e1+i(e2) and e1-i(e2) where e1 and e2 are polynomial expressions.

This also means that a third degree polynomial with real coefficients has at least one real root, or three.

Since we are given two real roots for the given polynomial, the third root cannot be complex alone, so the only possibility is that there are three real roots.

If b is real, then all three roots are real.

If b is not real, then two of the roots are real (-4 and 4) and one is imaginary.

What is a polynomial?

Polynomial is an equation written with terms of the form kx^n.

where k and n are positive integers.

There are quadratic polynomials and cubic polynomials.

Example:

2x³ + 4x² + 4x + 9 is a cubic polynomial.

4x² + 7x + 8 is a quadratic polynomial.

We have,

The polynomial function f(x) has degree 3 and two roots -4 and 4, we know that (x + 4) and (x - 4) are factors of the function.

To see why, note that when x = -4, the factor (x + 4) becomes zero, making the function zero.

Similarly, when x = 4, the factor (x - 4) becomes zero, making the function zero.

Now,

Since the function has degree 3 and two factors of degree 1, we can conclude that the third factor is also of degree 1.

This means that the function can be written in the form:

f(x) = a (x + 4) (x - 4) (x - b)

where a and b are constants.

We don't know the value of b, but we know that it is a real number (since the other two roots are real).

Thus, the three roots of the function are -4, 4, and b.

Now,

To determine whether the roots are all real or some are imaginary, we need to know the value of b.

If b is real, then all three roots are real.

If b is not real, then two of the roots are real (-4 and 4) and one is imaginary (b).

Thus,

If b is real, then all three roots are real.

If b is not real, then two of the roots are real (-4 and 4) and one is imaginary.

Learn more about polynomials here:

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- 9 times the difference between a number and 86 is equal to the number plus – 48.

Answers

Answer and Step-by-step explanation:

The equation should look like this:

-9(x - 86) = x - 48

Distribute the -9.

-9x + 774 = x - 48

Add 48 and 9x to both sides of the equation.

822 = 10x

Divide both sides of the equation by 8.

82.2 = x

[tex]\frac{411}{5}[/tex] = x  -- Fraction Form

#teamtrees #PAW (Plant And Water)

Hey can somebody help me

Answers

Answer:

x^2/3

Step-by-step explanation:

Exponent properties!

x^4*x^9 for example,

we add the exponents because the base of the exponents is the same.

now back to the question

x^4/3 * x^2/3

we add those exponents!

6/3 or 2

so we have( x^2)^1/3

^2 and ^1/3 multiply!

we have x^2/3

help? i mark brainlist :)

Answers

Answer:

There are 25 students in the class.

Step-by-step explanation:

In order to find the number of students in the class, you can add the number of data points together. Because the name of each person will only be recorded once and only to one data value, that means by adding the total number of data points collected, you can find out the number of students in the sixth-grade class. There are three data points on 3, two data points on 4, five data points on 5, eight data points on 6, two data points on 7, one data point on 8, and four data points on 9, this means the total number of students will be 3 + 2 + 5 + 8 + 2 + 1 + 4 = 25 students, so this will be your answer.

Me ayudan por favor ♡?​

Answers

Answer:

Yes of course I would like to help u.

Please answer the question below 15 points for answering!

Answers

Take any 2 points from the given line and use the rule to find slope

(3,0) (0,-1)

Slope= y2-y1/x2-x1

Slope= -1-0/0-3= -1/-3 = 1/3

Final answer :

Slope = 1/3

So it’s the first option :)

The graph of y = RootIndex 3 StartRoot x minus 3 EndRootis a horizontal translation of y = RootIndex 3 StartRoot x EndRoot. Which is the graph of y = RootIndex 3 StartRoot x minus 3 EndRoot?

On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (2.5, 0), and goes through (10, 2).
On a coordinate plane, a cube root function goes through (negative 10, negative 2), has an inflection point at (negative 3, 0), and goes through (4, 2).
On a coordinate plane, a cube root function goes through (negative 10, 1), has an inflection point at (0, 3), and goes through (8, 5).
On a coordinate plane, a cube root function goes through (negative 8, negative 5), has an inflectoin point at (0, negative 3), and goes through (8, negative 1).

Answers

Answer:

Its AAAAAAAAAAA

Step-by-step explanation:

The graph of y = RootIndex 3 StartRoot x minus 3 EndRoot the A is correct

We have given that,

The graph of y = RootIndex 3 StartRoot x minus 3 EndRootis a horizontal translation of y = RootIndex 3 StartRoot x EndRoot.

On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (2.5, 0), and goes through (10, 2).

What is the coordinate plane?

A coordinate plane is a two-dimensional plane formed by the intersection of a vertical line called the y-axis and a horizontal line called the x-axis. These are perpendicular lines that intersect each other at zero, and this point is called the origin.

On a coordinate plane, a cube root function goes through (negative 10, negative 2), has an inflection point at (negative 3, 0), and goes through (4, 2).

On a coordinate plane, a cube root function goes through (negative 10, 1), has an inflection point at (0, 3), and goes through (8, 5).

On a coordinate plane, a cube root function goes through (negative 8, negative 5), has an inflection point at (0, negative 3), and goes through (8, negative 1).

To learn more about the coordinate plane visit:

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Can someone help me with this one?

Answers

Answer:

answer is C

Step-by-step explanation:

y intercept = -3

Answer:

ejjejjeheyreyyeueuuueuuu

!uueueuueu

Step-by-step explanation:

jejjejeujejsjjdjsjjsjsjsjsjjjjejjjejejjjjejeje

If a 32-gram serving of pasta contains 4g of protein, how many grams of protein are in a 908-gram box of the pasta ?

Answers

Step-by-step explanation:

This is my solution you honestly just need to cross multiply

Answer:

113.5

Step-by-step explanation:

32 : 4 = 908 : X

X = (4 * 908) / 32

X = 113.5

Can y’all help me on question 32?!

Answers

Answer:

b. 96

Step-by-step explanation:

triangle area= b x h / 2

5 x 6 /2= 15

15 x 4 (4 triangles)= 60

square area= b x h

6x6=36

36 + 60 = 96

Sorry I need some points to post my homework. Feel free to give the other person brainless:)


[tex] \frac{11}{3} \times \frac{23}{5} [/tex]

Answers

16.86666667 is the answer
11*23=253
3*5=15
253/15=
16.8666667

Emilia is painting a triangular picture frame. The perimeter is 30 inches. If one side is 13 inches long and another side is 5 inches long, what is the length of the other side of the picture frame?

Answers

Answer:

12 inches

Step-by-step explanation:

30-13=17

17-5= 12

Use information about the triangle's perimeter, to find the side length of C.

If the triangle frame is a right triangle, than you could use the Pythagorean Theorem and use the following formula, a^2 + b^2 = c^2, to find the measure of side c.

Have a great rest of your day, and I hope this helps!

-kiniwih426

What is the similarity
statement for the triangle
pair?

Answers

Answer:

side-side-side

Step-by-step explanation:

If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar. We know this because if two angle pairs are the same, then the third pair must also be equal. When the three angle pairs are all equal, the three pairs of sides must also be in proportion.

The similarity statement for the pair of triangles is triangle XYZ similar triangle ENW by AA similarity criterionand mathematically represented as: [tex]\Delta XYZ \, \sim \, \Delta ENW\\[/tex]

Given: In the figure, the angle YXZ is equal to angle NEW and the angle XZY is equal to angle ENW are marked in the corresponding triangles.

To prove triangle XYZ similar triangle ENW  by following steps:

Step 1: Consider the triangle XYZ and triangle ENW.

Compare the angle in both the triangles.

[tex]\Delta XYZ \, and\, \Delta ENW\\[/tex][tex]\angle YXZ = \angle NEW\\[/tex][tex]\angle XZY = \angle NWE[/tex]

Step 2: Applying the AA similarity criterion:

The Angle-Angle AA similarity criterion states if two angles of one triangle is equal to the corresponding triangle, then two triangles are similar,

This implies triangle XYZ and triangle ENW by AA similarity criterion.

Therefore, the triangle XYZ and triangle ENW by AA similarity criterion. That is  [tex]\Delta XYZ \, \sim \, \Delta ENW\\[/tex]

Learn more about AA similarity criterion   here:

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Ben sold his small online business for $100,000. The purchaser will pay him $20,000 today, then $20,000 every year for the next four years. Assume that Ben could invest a lump-sum payment today in an account yielding an interest rate of 4% annually. Find the total present value of all five payments.

A.
$87,096
B.
$88,384
C.
$92,598
D.
$93,964

Answers

Answer:

c. 92,598

Step-by-step explanation:

20000 + 20000/1.04 + 20000/(1.04^2) + 20000/(1.04^3) + 20000/(1.04^4)= 20000 + 19230.77 + 18491.12 + 17779.73 + 17096.08

= 92597.

= 92,598

I need help with #2. Please help. I have to show all work so please explain

Answers

Answer:

b = 18 in.

Step-by-step explanation:

Since the triangle given is a right triangle, we can use Pythagorean Theorem to solve for b.

[tex]a^2+b^2=c^2\\7.5^2+b^2=19.5^2\\56.25+b^2=380.25\\b^2=324\\\sqrt{b^2}=\sqrt{324}\\b=18[/tex]

Therefore, b is 18 inches.

Use f(x) = 3x - 4 and g(x) = 5 - x2 to evaluate the expression.
(a)
(f of)(x)
(b)
(go g)(x)

Answers

Answer:

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

is it 8%? i think but i just wanna make sure.

Answers

Answer:

Yeah, you're right!

Step-by-step explanation:

For 1/6 it's 17%, so just divide by two and you get 8% (rounded).

Answer:

thats right 8%

Step-by-step explanation:

numbers of samples = 6×2 = 12

6 for a cube , and 2 for a fair coin

numbers of event (5, H) is 1

so, the probability is 1/12 = 1/12 × 100%

= 8.33% => rounded => 8%

Soda is often sold in 20 ounce bottles. A pack of sugar (the kind they have at restaurants for your coffee or tea) typically contains 4 grams of sugar. If an 8 ounce bottle of cream soda has 30 grams of sugar, then drinking a 20 ounce bottle of cream soda would be equivalent to eating how many packets of sugar?

Answers

Answer:

18.75 packs of sugar

Step-by-step explanation:

20/8 = 2.5 (how many 8 ounce bottles in 20 oz)

2.5 * 30 = 75 (to find how many grams of sugar in the 20 oz bottle)

75/4 = 18.75 (how many packs of sugar it's equal to)

you can also use a ratio to solve:

8/30 = 20/x; cross multiply

600 = 8x; divide 8 on both sides

x = 75

75/4 = 18.74 (how many packs of sugar it's equal to)

Triangle PQR has vertices P(3, 5), Q(-2, 6) and R(8, -1). Give the translation rule (x, y) → (x + 4, y – 5). What will P’ (__, __) be

Answers

Answer:  ( 7, 0 )

=======================================================

Explanation:

The rule [tex](x,y) \to (x+4, y-5)[/tex] means we add 4 to the x coordinate and subtract 5 from the y coordinate.

The point (3,5) becomes (3+4, 5-5) = (7,0)

This shifts the point 4 units to the right and 5 units down.

A rope with a length of 3.5 meters is tied from a stake in the ground to
the top of a tent. It forms a 17 degree angle with the ground. How tall
is the tent?

Answers

Answer: Approximately 1.0233 meters

Round this however you need to

====================================================

Work Shown:

Refer to the drawing below.

sin(angle) = opposite/hypotenuse

sin(17) = x/3.5

3.5*sin(17) = x

x = 3.5*sin(17)

x = 1.02330096652958

x = 1.0233

Be sure that your calculator is in degree mode.

2 times the sum of a number and 9 equals 4​

Answers

Answer

Step-by-step explanation:

HELP PLEASE!!! HELP HELP

Answers

Answer:

f(-3) = -1/3

Step-by-step explanation:

-3 is less than -2 so we use the first function  1/x

f(-3) = 1/-3

Answer:

-1/3

Step-by-step explanation:

-3 is less than -2, so use the first one, 1/x and substitute -3 in

1/(-3)=-1/3

Angle A??
Ch.7.1 trig

Answers

9514 1404 393

Answer:

  m∠A =86°

Step-by-step explanation:

The sum of angles in a triangle is 180°

  A + B + C = 180°

  A + 51° + 43° = 180°

  A = 86° . . . . . . . . . . . . . subtract 94° from both sides

ASAP! see the picture please!!

Answers

Answer:

the second one

function A has a slope of 3

function B has a slope of 5

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