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
Solnce55 [7]
3 years ago
12

In 1990, there were 4,500 deaths due to lung diseases in miners aged 20 to 64 years. The expected number of deaths in this occup

ational group, based on age-specific deaths rates from lung diseases in all males aged 20 to 64 years, was 1,800 during 1990. What is the standardized mortality ratio (SMR) for lung disease in miners
Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

2.5

Step-by-step explanation:

We have that the standardized mortality ratio (SMR) is the relationship between the number of deaths observed in a year, that is, those that occurred and the number of expected deaths, that is, those that were predicted.

SMR = observed / expected

therefore if we replace we have:

SMR = 4500/1800

SMR = 2.5

Which means that the standardized mortality ratio (SMR) is 2.5

You might be interested in
Which is the product of 4^4(4^-7)(4)?
Degger [83]

Answer:

1/16 or 0.0625

Step-by-step explanation:

we can take 4 outside the parentheses and we would get 4^(4-7+1)=4^(-2)= 1/(4^2)=1/16=0.0625.

3 0
3 years ago
Read 2 more answers
it cost $19.50 for postage and$5 for insurance to send a one-pound box by Express mail. How much does it cost to send 12 one-pou
IrinaK [193]
19.50 + 5 x12 = $79.50
6 0
3 years ago
Which best describes the solution for the system of linear equations graphed below?
Shalnov [3]

Answer:

D is correct Answer. Parallel line on graph means infinity many solutions.

6 0
3 years ago
does anyone here have snap like fr my dms are so dry i need new people to talk to. 100 points to whoever answers, i'll give brai
Over [174]

Step-by-step explanation:

Please I can't get the question well.Can you please write the words fully?

Thanks for understanding

5 0
3 years ago
HURRY!!!! PLS NEED AWMSER IN CLASS I CAN PICK THEM DOWN BELOW
ivann1987 [24]

Answer:

9. 7/2

10. -6

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • DISJUNCTIONS
    13·2 answers
  • I'll give 99 points
    10·2 answers
  • What does -8x + y = 16 solve
    11·1 answer
  • What is the area of this triangle?
    7·1 answer
  • If you flip a coin three times, how many different outcomes are there
    7·1 answer
  • In ΔKLM, the measure of ∠M=90°, LK = 97, ML = 65, and KM = 72. What is the value of the sine of ∠L to the nearest hundredth?
    12·1 answer
  • Which statements describe the function f(x)=2x+24/x^2+4x-96? Check all that apply.
    9·2 answers
  • Can you help me with this problem ? Please
    9·2 answers
  • Find I. Choose the correct answer.
    11·1 answer
  • Which expression is equivalent to the expression -3 (4r - 2) -2r?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!