To increase attendance for a flower show, flower shops in the area offered discount coupons to their customers. Show attendance was higher this year, which the organizers attributed to the many discount coupons attendees used. However, the organizers are warned that weather could be a confounding variable in interpreting the rise in attendance.

Which statement could explain the effect of confounding?

Because the weather was worse last year, fewer coupons were distributed compared to this year.
Because the weather was similar in both years, it most likely played no role in the attendance increase.
Because coupons were handed out this year and not last year, the weather was different this year compared to last year.
Because the weather was generally better this year compared to last year, the attendance may have increased.

Answer:

Step-by-step explanation:

Incorrect Step is C:

Answer: 600

explanation:

12% of 5,000 = 600

Answer:

51 + 85 = 136

Step-by-step explanation:

Hi,

The ratio of two numbers is 3 to 5.

Let x represent the constant of the proportionality

 3x + 5x = 136

    8x = 136 (divide both sides by 8)

x = 17

The numbers are:

3*17 = 51 and

5*17 = 85

CHECKING our answer***

  51 + 85 = 136

Answer:

51 and 85

Step-by-step explanation:

add the two ratio parts (3 & 5) and divide by total. you get 17. then multiply the parts by 3 and 5 to get the answer

Answer:

A = 125, B = 55, C = 125

Step-by-step explanation:

A line that is cut into two by a line has two angles that equal 180.  So angle A + angle D is 180. Angle D = 55 so 180 - 55 = 125. You do the same for every angle but look at the line as being cut into two in different directions for angles a and b and angles c and d.

Answer:

A

Step-by-step explanation:

Just took the exam

Using confidence interval concepts, it is found that the margin of error is 5.

A confidence interval (CI) is a range of estimates for an unknown parameter in frequentist statistics. A confidence interval has the format (a,b).

The margin of error is half the difference between the two bounds, that is:

M  =  (  b  -  a  )  /  2

In this problem, the interval is (32, 42), hence, and the margin of error is:

M  =  (  42  -  32 )  /  2  =  10  /  2  =  5

Therefore the margin of error is 5.

To know more about confidence intervals follow

https://brainly.com/question/16974109

#SPJ2

Answer:

A.) The inequality 25m + 70 < 350 represents the fact that the student must save more than $11.20 each week to meet the goal. I hope this helped u :)

Step-by-step explanation:

25 x 11.20 = 280

280+70=$350

but since the student wants to save more than $350 that's why it says the student must save MORE than $11.20 each week :)

Answer:

1 4/25 - 3/5, or 29/25 - 3/5, or [tex]\frac{(29m - 15)}{25}[/tex]

it doesn't really matter they all mean the same

Step-by-step explanation:

1 2/5m - 3/5(2/5m + 1)

multiply first

1 2/5m - 6/25m - 3/5

multiply 1 2/5 only so the denominator is 25 as we can't simplify 6/25, it's so we can add them together, we can't add 3/5 tho bc it's a different term so there's no need to multiply that.

1 10/25m - 6/25m - 3/5

add/subtract

1 4/25m - 3/5

Answer: y = - 0.4 x - 4.5

Step-by-step explanation:

Equation y=mx+b

m is the slope

x is *ANY* x coordinate

y is *ANY* y coordinate

b is y intercept or WHERE the point is on the Y AXIS

Lets look at the given:

Slope (m) is -2/5

Passes through point 15, -9/2

As you can see, the point goes through the Y axis at (-9/2)

Our equation is y = - 0.4 x - 4.5

Answer:

There will be three digits in the quotient.

Step-by-step explanation:

The answer would be 119. Hope this helped ^^✨

(80×100):300=

8000:300=26.67

so 80 percent of 300 is 26.67

Answer:

hello your question is incomplete attached below is the complete question

answer : ( 184.019 , 206.219 )

Step-by-step explanation:

The 95% confidence interval for the mean auditory response time for subjects with a visual response time of 200 ms can be calculated using this relationship below

y = Bo + B1 ( 200 )  = 195.118621 , sy =

hence a 95% confidence interval = 195.118621 ± 2.306( 4.813492) i.e.  ( 184.019 , 206.219 )

attached below is the remaining part the solution

Answer:

multiply 3x-2(x+8)

Step-by-step explanation:

PEMDAS

also you must simplify both sides to solve this problem and that's the first step to simplifying this side (the other one is simplified)

Answer:

You should start the question of by  distibuting the group 2(x+8)

Step-by-step explanation:

This is the most imoortant step to start off with because of:

GEMDAS

group, exponent, multiply, divide, add and subtract

Answer:

cant see the picture

Step-by-step explanation:

ptxx cnt see the pic

Answer: Hope that helps!

=13x+2y

Step-by-step explanation:

Combine Like Terms:

=4x+2y+9x

=(4x+9x)+(2y)

=13x+2y

Answer:5y+13

Step-by-step explanation:

Answer:

5y+13

Step-by-step explanation:

You add 7y and -2y

and then add 4+9

which is  5y+13

Answer:  2.28%

Step-by-step explanation:

Given: An airport find that at the present time, the mean noise level is 103 decibels and the standard deviation is 5.4 decibels.

The distribution of noise levels(x) for all jets during takeoff over the neighborhood has a normal distribution.

The probability that jets have a noise level less than 92.2 decibels when taking off over this neighborhood will be :-

[tex]P(X<92.2)=P(\dfrac{X-\mu}{\sigma}}<\dfrac{92.2-103}{5.4})\\\\=P(Z<-2)\\\\=1-P(Z<2)\\\\=1- 0.9772498\ \ \ [\text{By p-value table}]\\\\=0.0227502\approx2.28\%[/tex]

Hence, the percent of these jets have a noise level less than 92.2 decibels when taking off over this neighborhood = 2.28%

Answer:

59% why

Step-by-step explanation:

i just took the test my gee

Answer:

Tax: $2.4

Total: $42.4

Step-by-step explanation:

40*0.06 = 2.4, 40 + 2.4 = 42.4

Hi there! :)

[tex]\large\boxed{-8.4}[/tex]

We can calculate the decimal by converting the fraction to an improper fraction, then dividing.

Derive the inpromper fraction by:

[tex]a\frac{b}{c} = \frac{c * a + b}{c}[/tex]

In this instance:

[tex]-8\frac{2}{5} = \frac{-8* 5 -2 }{5} = \frac{-42}{5}[/tex]

Divide:

-42 ÷ 5 = -8.4.

Answer:

it goes in 4 times I rounded up to 30 and 30 times 4 is around there

Answer:

Step-by-step explanation:

c

Answer:

50°

95°

is not

is not

Step-by-step explanation:

50°

95°

is not

is not

Answer:

First box: 50°

Second box: 95°

Third box: is not

Fourth box: is not

Step-by-step explanation:

[tex]m\angle FEH = 40\degree + \boxed{50}\degree =\boxed{95}\degree [/tex]

Answer:

a 2d is basically something that is flat, or like a graph. it doesnt have a volume.

a 3d is something that has a volume, it has sides and front and back.

2d ex; a graph on paper

3d ex; a square or rectangular box

Step-by-step explanation:

hope it helps

Answer:

m<x= 53

Step-by-step explanation:

m<x = m<y

so...

all you do is 180-128= 53

because m<z = m<y too

and the m<z+128=180