HELLPP PLEASE

After becoming sick, a patient sees a doctor who determines the most likely cause is an allergic
reaction and prescribes an antihistamine. The patient returns home and stops burning candles and
incense for the next week while taking the medication. By the end of the week, the patient is feeling
better and is telling all his friends how wonderful the medication was at relieving his symptoms. This
is an example of

1. confounding, as there is no way to tell whether it was the medication that alleviated his
symptoms

2. convenience sampling since he only stopped burning candles and incense because it was easy

3.a double-blind experiment since neither he nor the doctor really knew what was wrong

4. bias since he wanted to feel better

Answers

Answer 1

Answer:

I think it is 1, but I am not 100%

Step-by-step explanation:

Since he stopped the meds at the same time he stopped what couldve been his cousin his reaction to begin with, you can prove if it was medication only.  


Related Questions


Denominator of the fraction
2/5.

Denominator of the fraction 13/16.

This is a 20 point question must answer both plzzz plus Brainly

Answers

Answer:

Denominator for 2/5 is 5, and denominator for 13/16 is 16.

Help! Got it wrong after trying first time and need helppp !

Answers

We are given the equation:

DA - 2qA = B³

Taking 'A' common on the LHS

A(D - 2q) = B³

Dividing both sides by (D - 2q)

A = B³ / (D - 2q)

16/30=20/x what is x?

Answers

Answer: 75/2

Step-by-step explanation: Math

Answer:

75/2

Step-by-step explanation:

16/30=20/x

Cross multiply

16*x=(20)*(30)

16x=600

Divide both sides by 16.

16x /16  = 600 /16

x=75/2

I hope it's right

An airline tracks data on its flight arrivals. Over the past six months, 65 flights on one route arrived early, 273 arrived on time, 218 were late, and 44 were cancelled. What is the probability that a flight is early

Answers

Answer:

0.108

Step-by-step explanation:

Given that:

Number of flights reached early = 65

Number of flights reached on time = 273

Number of flights reached late = 218

Number of flights canceled = 44

To find:

The probability that a flight is early.

Solution:

First of all, let us have a look at the formula for probability of an event E.

Formula for probability of an event E can be observed as:

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]

Here, Event E is that the flight is early.

Number of favorable cases is equal to the number of a flights which reached early i.e. 65

Total number of cases is the total number of flights.

i.e. 65 + 273 + 218 + 44 = 600

So, the required probability is:

[tex]P(E) = \dfrac{65}{600} = \bold{0.108}[/tex]

we need help . we think we got it but were not sure ​

Answers

Answer:

your right

Step-by-step explanation:

13.5/3= 4.5 4.5x10= 450 The original price is 450 dollars
4.5=10%
315= 70%
You paid 315 dollars

One rectangle measures 2 units by 7 units. A second rectangle measures 11 units by 37 units. Are these two figures scaled versions of each other? If so, find the scale factor.

Answers

Answer:

No.

Step-by-step explanation:

If they are scaled versions of each other then the ratio of corresponding sides would be equal.

11/2 = 5.5

37/7 = 5.29

So they are not scaled versions

Answer:

no

Step-by-step explanation:

Solve for x by answering the number below/

Answers

X = 5.

2(5)+8=4(5)-2
18=18

Answer:

The value of x is 5.

Step-by-step explanation:

In a square, all sides are equal so you can compare the expressions to solve x :

[tex]4x - 2 = 2x + 8[/tex]

[tex]4x - 2x = 8 + 2[/tex]

[tex]2x = 10[/tex]

[tex]x = 5[/tex]

PLSSS HELP ME! WILL GIVE BRAINLIEST WHEN I CAN

Answers

Answer:

first one: 5/8

second one; 1/2

third one 2/7

fourth one 3/14

fifth one 1/11

I hope this is good enough:

Leo bought 18 boxes of cereal. This is 25% of the boxes at the store. How many total boxes of cereal were at the store?

Answers

Answer : There were 72 boxes at the store.
72 boxes at the store

If tanx =√24 and cosx =−2√23, find sinx.

Answers

Answer:

Step-by-step explanation:

sin(x)=cos(x) × tan(x)

=(-2√23)×(√24)

=(-2√23)×(2√6)

=(-4√138)

=(-4(2√(3×23)))

=(-8√69)

this as a decimali if you respond for first you will have
the brainlest answer​

Answers

Answer:

8.525

Step-by-step explanation:

The rabbit population in a certain area is ​200% of last​ year's population. There are 300 rabbits this year. How many were there last​ year?

Answers

Answer:

There were 650 rabbits last year

The percentage of a quantity can be found by first changing the percent into a fraction and then multiplying it to the value of that quantity. Last year the number of rabbits was 150.

What is percentage?

A percentage is a value that indicates the hundredth part of any quantity.

To convert percentage into a fraction it is divided by 100.

Given that,

The population of rabbit this year is 300.

The percentage of the population with respect to the last year is 200%.

Suppose the population of rabbits last year was P.

Then as per the question, following expression can be written,

200% of N = 300

⇒ (200 / 100) × N = 300

⇒ 2N = 300

⇒ N = 150

Hence, the population of the rabbits last year was 150.

To know more about percentage click on,

brainly.com/question/29306119

#SPJ2

If LN = 6x - 5, LM = x + 7, and MN = 3x + 20, find MN

Answers

Answer:

68

Step-by-step explanation:

LM   +    MN     =   LN

x + 7  + 3x + 20 = 6x - 5

           4x + 27 = 6x - 5

          -4x         -4x      

                   27 = 2x - 5

                    +5        +5

                   32  = 2x

                   ÷2   ÷2    

                    16 = x

MN: 3x + 20

      3(16) + 20

        48   + 20

              68

It costs 11$ for 15 granola bars.

What is the unit price, in dollars per granola bar, rounded to the nearest hundredth?

Answers

Answer:

Each granola bar costs $0.73.

Step-by-step explanation:

11/15 = 0.73

Aria is buying refreshments for a birthday party. She intends to get an ice cream cake for $23
and some cupcakes for $2 each. Aria has a $45 budget but does not have to spend the entire
amount. Which inequality best represents the number of cupcakes, C, that Aria can purchase?

Answers

Answer:

11

Step-by-step explanation:

Answer:

$2c ≤ $45

I believe this is the right inequality.

What are the values of x and y in the following system of equations?

[tex]x+y=15[/tex]
[tex]y-x=5[/tex]

Answers

Step-by-step explanation:

By elimination method,

x+y=15

-x+y=5

------------

2y=20

i.e y=10

Now,

x+y=15

or, x+10=15

or, x=5

I just need help filling in the rest of this table. I've done some, but I've been stuck for a while now. Huge thanks to anyone who can help!

Answers

Answer:

i think 20 is above 12 and 17 under 30 and 36 is on top of 20 the rule is .50(x) +2

Answer:

Step-by-step explanation:

c = 0.5t + 2

12 = 0.5t + 2 ⇒ 0.5t = 10 ⇒ t = 20

c = 0.5(30)  + 2 ⇒ c = 17

20 = 0.5t + 2 ⇒ 0.5t = 18 ⇒ t = 36

HELPPPPPP ILL GIVE BRAINLIEST!!!!

Answers

Answer: a

Step-by-step explanation:

Evaluate f(-2) for the function f(x)= -1/2x^2 + x + 1

Answers

Answer:

f(-2) = -3

Step-by-step explanation:

[tex]f(x)=-\frac{1}{2} x^{2} +x+1[/tex]

Just plug in x = -2

[tex]f(-2)=-\frac{1}{2} (-2)^{2} -2+1[/tex]

[tex]f(-2)=-\frac{1}{2} (4) -1[/tex]

4 can be rewritten as [tex]\frac{4}{1}[/tex] or [tex]\frac{8}{2}[/tex] so it has a common denominator.

[tex]f(-2)=-\frac{1}{2} * \frac{8}{2} -1[/tex]

[tex]f(-2)=-\frac{4}{2} -1[/tex]

[tex]f(-2)=-2-1[/tex]

[tex]f(-2)=-3[/tex]

Simplify the expression.
(5)10 - (5)13
O-15
O-3
O 115
O2

Answers

Answer:

-15 is a answere

Step-by-step explanation:

According to BODMAS(bracket of Division Multiplication Addition Sutraction) rule

5*10-5*13

50-65

-15

If one (1) tablespoon equals three (3) teaspoons, how many tablespoons are in 13 teaspoons?

a.2 2/3 tablespoons
b.4 1/2 tablespoons
c.3 1/3 tablespoons
d.4 1/3 tablespoons

Answers

D. 4 1/3 tablespoons

12 out of 15 students play in the school band. In a class of 45 students, how many do NOT play in the band? HELP!

Answers

Answer:

9 students

Step-by-step explanation:

because 15x 3 = 45 so 12x3= 36 so 45-36= 9 Can i be branliest

What is the image point of (-4,-3)(−4,−3) after a translation left 1 unit and down 2 units?

Answers

9514 1404 393

Answer:

  (-5, -5)

Step-by-step explanation:

After adding (-1, -2) to the coordinates, the image point is ...

  (-4, -3) +(-1, -2) = (-5, -5)

53. Pem was given a coin on Monday. Then she was given two coins every day for a long time
Which day did she get her 17th coin?
A. Tuesday
B. Wednesday
C. Sunday
D. Monday​

Answers

I think it’s A.) Tuesday

jshsmsnsksskjs landmarks sksnsn

Answers

Answer:

sknsonsknsknsknskdnksndksn?

Is this table proportional?

Answers

Answer:

yes it is

Step-by-step explanation:

pls give brainlest almost lvled up

Answer:

I believe that this is not.

It is not proportional.

What is the probability that the winner of the race (the fastest one of the four runners) will come from Team 2?

Answers

Answer:

B what is the probability that the winner of the race ... that the winner of the race (the fastest one of the four runners) will come from Team 1? ... Setting λ 1 = 19 / 90 and λ 2 = 5 / 24 we have, P ( X 1 < X 2 ) = Z ∞ 0 Z ∞ x 1 f X 1 ( x 1 ) f X 2 ( x 2 ) ...

Step-by-step explanation:

hope this helps

What is the greatest common factor of 42 and 81?

Answers

Answer:

3

Step-by-step explanation:

42 is 2 x 3 x 7

81 is 3 x 3 x 3 x 3

3 is the greatest common factor

Answer:

3

Step-by-step explanation:

3 is the greatest common factor of 42 and 81

a temperature of 0 degrees Celsius:

a temperature of 8.5 degrees Celsius above zero:

a temperature of 7 degrees Celsius below zero:

100 points

Answers

Answer:

mark on the 0, on the 7, and half way past 8

hope this helps, pls give brainliest

Step-by-step explanation:

To borrow money, you pawn your guitar. Based on the value of the guitar, the pawnbroker loans you $600. One
month later, you get the guitar back by paying the pawnbroker $1170. What annual interest rate did you pay?
You will pay a simple interest rate of %
(Round to the nearest whole number as needed.)

Answers

Answer:

51% (596.7) or 52% (608.4)

Step-by-step explanation:

1170 multiply by 51% or 52% and you will get as close as you can to 600. I hope this can help. I am sorry If I got it wrong or misunderstood. :) Have a nice day!

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