1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jek_recluse [69]
2 years ago
14

As part of a drug trial, a survey was done to gather information about the participants' experiences with side effects. Here are

the results.
•689 people participated in the drug trial in all

• 271 of the participants had dizziness

• 86 of the participants had both dizziness and fatigue, but didn't have anxiety

• 23 of the participants had both dizziness and anxiety, but didn't have fatigue

• 93 of the participants had fatigue, but had neither dizziness nor anxiety

• 62 of the participants had anxiety, but had neither dizziness nor fatigue

• 36 of the participants had dizziness, but had neither anxiety nor fatigue

•585 of the participants had at least one of these three side effects (dizziness, anxiety, fatigue)

Construct a Venn diagram illustrating these results. Then answer the question.​

Mathematics
1 answer:
Paraphin [41]2 years ago
8 0

The Venn diagram which represents the distribution of the participant in the drug trial is attached below. The Number of participants in the drug trial that has anxiety is 370

We can find the number of participants who has dizziness(D). Fatigue(F) and anxiety(A) can be calculated thus :

n(D) = n(D only) + (DnF only) + (DnA only) + (DnAnF)

271 = 36 + 86 + 23 + x

271 = 145 + x

x = 271 - 145

x = 126

  • n(DnAnF) = 126

<u>Number who has </u><u>atleast one of the three</u><u> side effects can be expressed thus</u> :

n(A only) + n(F only) + n(D only) + (DnF only) + (DnA only) + (DnAnF) + n(FnA only) = 585

36 + 23 + 62 + 86 + 126 + 93 + n(FnA) only = 585

  • n(FnA only) = 585 - 426 = 159

<u>Number of participants</u><u> who has </u><u>anxiety</u><u> can be calculated thus</u> :

n(DnAnF) + (DnA only) + n(FnA only) + n(A only)

126 + 23 + 159 + 62 = 370 participants

Therefore, 370 of the total participants has Anxiety.

Learn more : brainly.com/question/12570490

You might be interested in
An appliance manufacturer wants to contract with a repair shop to handle authorized repairs in Indianapolis. The company has set
jeyben [28]

The best firm for the Appliance manufacturer for the repair work is Firm 2 .

In the question ,

it is given that ,

An appliance manufacturer wants to contract with a repair shop to handle authorized repairs in Indianapolis .

The acceptable range of the repair time is 50 minutes to 90 minutes.

the mean repair time for firm 1 = 74 minutes and standard deviation of 4 minutes .

the mean repair time for firm 2 = 72 minutes and standard deviation of 5.1 minutes .

the range is calculated using the formula

Range = Mean ± Standard Deviation

So , for firm 1 ,

the Range = 74 ± 4

= 74 + 4       and      74 - 4

= 78     and   70

the range for firm 2 is

= 72 ± 5.1

= 72 + 5.1      and      72 - 5.1

= 7.1        and       66.9  

The second company has a lower range and it should be preferred .

Therefore ,  The best firm for the Appliance manufacturer for the repair work is Firm 2 .

Learn more about Standard Deviation here

brainly.com/question/23611887

#SPJ1

8 0
1 year ago
Simplify -|-7 + 4|.<br><br> -11<br> -3<br> 3<br> 11
myrzilka [38]

|a| = -a for a < 0

|a| = a for a ≥ 0

examples:

|-1| = -(-1) = 1; |-4| = -(-4) = 4; |-0.1| = 0.1; |-109| = 109

|7| = 7; |19| = 19; |0| = 0

- |-7 + 4| = - |-3| = - (3) = -3

Answer: -|-7 + 4| = -3

3 0
3 years ago
Read 2 more answers
How can the properties of exponents help solve exponential equations?
qwelly [4]
The properties of exponents would help solve exponential equations by creating an expression that can be simplified easily. It elps in simplfying a certain equation. It tells us how are terms that contain exponents can be added, subtracted, divided and multiplied. For addition, terms having the same can only be added. This would be also true for subtraction. For example, we have x^2 + y^3, these terms could not be added since they have different base. For multiplication, we can readily multiply these terms and add the exponents of the terms with the same base, x^2(y^2)(x) = x^3y^2. For division, they can also be divided readily but, terms with the same base, the exponents are to be subtracted, x^3 / x^2 = x.
7 0
3 years ago
Graph y=-1/3x+5. Plsss help hurry
tiny-mole [99]
For graphing, the desmos graphing calculator is a big help :))

8 0
3 years ago
Find the missing value. Show your work. please
Sophie [7]
#1
sin(51^o)= \frac{y}{12} \ \ \to \ \ y=12*sin(51^o)=12* 0.7771 \approx 9.33

#2
\theta=arccos( \frac{5^2+13^2-12^2}{2*5*13}) = arccos( \frac{25+169-144}{130})=arccos( \frac{50 }{130})= \\ \\ arccos(0.3846) \approx67.4^o

#3
tan(13^o)= \frac{x}{24} \ \ \to \ \ x=24*tan(13^o)=24* 0.2309 \approx 5.54

#4
sin(20^o)= \frac{10}{x} \ \ \to \ \ x= \frac{10}{sin(20^o)} = \frac{10}{0.342}  \approx 29.24
5 0
3 years ago
Other questions:
  • Molly had already read 6 books this year before joining a book club, and she plans to read 3 books every month now that she has
    14·1 answer
  • What is the equation of a line, in general form, with a point (-3, 0) and an undefined slope?. Choices: x + 3 = 0. y + 3 = 0. x
    10·2 answers
  • What is 56.25% as a fraction
    8·2 answers
  • What is 0.646 rounding to the nearest hundredth
    14·2 answers
  • Need help on 82 please !!!!!
    6·1 answer
  • I need help on this and the person who answer this correctly gets a BRANLIST(answer if you know)​
    6·2 answers
  • Which is equivalent to 4 radical 9^1/2x
    12·1 answer
  • Bob's youth group is selling candy bars for a fundraiser. The candy bars cost $2 each. To date, they have raised $700. Their goa
    8·2 answers
  • ANOVA is a hypothesis testing technique used to compare the equality of means for two or more groups; for example, it can be use
    12·1 answer
  • What is 4/3 π multiplied by 2​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!