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
dybincka [34]
3 years ago
7

g (15 points) Suppose 42 out of 600 rats exposed to a potential carcinogen develop tumors. A control group of 350 rats not expos

ed to the carcinogen develops 13 tumors. Based on these data, computed (a) the relative risk, (b) the attributable risk, and (c) the odds ratio. Do these indicators suggest that there is a relationship between exposure and tumor risk
Mathematics
1 answer:
vazorg [7]3 years ago
7 0

Answer:

a) The relative risk is 1.8\overline{846153}

b) The attributable risk is 0.69 \overline{047619}

c) There is a relationship between exposure and tumor risk

Step-by-step explanation:

The number of exposed rats that develop tumors, a = 42

The number of rats exposed to the carcinogen = 600 rats

The number of exposed rats that did not develop tumors, b = 600 - 42 = 558

The number of not exposed rats in the control group = 350 rats

The number of rats that develop tumors in the control group, c = 13 tumors

The number of not exposed rats that did not develop tumors, d = 350 - 13 = 337  rats

a) The relative risk, RR = a/(a + b)/(c/(c + d))

∴ RR = (42/(42 + 558))/(13/(13 + 337)) = 49/26 = 1.8\overline{846153}

b) The attributable risk = (a - c)/a

∴ The attributable risk = (42 - 13)/42 = 0.69 \overline{047619}

c) The odds ratio = (a·b)/(c·d)

∴ The odds ratio = 42 × 558/(13 × 337) = 23439/4381 ≈ 5.35

Given that the result of attributable risk is positive, there is an indication that there is a higher probability to develop tumor when exposed to the potential carcinogen, therefore, there is a relationship between exposure and tumor risk

You might be interested in
Consider the first three terms of the arithmetic sequence: 7, 15, 23,... Determine d, the common difference.​
ValentinkaMS [17]

Answer:

I think 47 and 55

Explanation:

I think that each number is the previous one plus 8;

7+8=15

15+8=23

23+8=31

31+8=39

So, next will be:

39+8=47

47+8=55

Is this what ur looking for?? hope this help:)

3 0
2 years ago
Which is the graph of y – 3 = (x + 6)?
velikii [3]

The Answer is A (The first graph in the photo), I attached the graph to help you see the answer for y-3=-\frac{2}{3}(x+6).

I hope you have a good day and please give me brainest if that is correct!

3 0
2 years ago
What is the domain of the rational function, f of x equals quantity x minus 5 over quantity 2 times x minus 3
liq [111]

Answer:

<u>Domain = R - {3/2}</u>

Step-by-step explanation:

The domain of a rational function consists of all the real numbers x except those for which the denominator is 0

The given function is :

f(x) = \frac{x-5}{2x-3}

We need to find the zeros of the denominator

∴ 2x - 3 = 0    ⇒ add 3 to both sides

∴ 2x = 3          ⇒ divide both side by 2

∴ x = 3/2        

The domain will be all real number except the zeros of the denominator.

So, Domain = R - {3/2}

Also, see the attached figure that represents the given function.

7 0
3 years ago
The data set below gives the prices (in dollars) of cordless phones at an electronics store. 35, 50, 60, 60, 75, 65, 80
tangare [24]

Answer: ?

Step-by-step explanation:

?

5 0
3 years ago
A polynomial has one root that equals 5-7i. Name one other root of this polynomial
mezya [45]

Answer:

The other root is 5 + 7i.


4 0
3 years ago
Read 2 more answers
Other questions:
  • Determine the gravitational force of attraction between two 3.5 kg bowling balls whose
    5·1 answer
  • Solve for the values of x in the equation: <br> 2^(x) = 4x.
    11·2 answers
  • a woman walks into a store and steals $100 from the register and leaves. she later returns purchasing $70 in merchandise giving
    15·2 answers
  • What is the estimate of 206,834 and 194,268
    5·1 answer
  • At a benefit concert, fourteen bands have volunteered to perform but there is only enough time for six of the bands to play. How
    9·2 answers
  • Simplify the square root of 4x^6
    5·1 answer
  • (-7) + b = (-11) PLEASE HELP
    6·1 answer
  • One day, the outdoor temperature increased by 5/10 degree every hour for 6 hours. How much did the temperature increase by the e
    10·1 answer
  • SOMEONE HELP ItS URGENT ILL GIVE BRAINLEST!
    6·2 answers
  • 11. 23x2, 6х<br> What is the greatest common factor
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!