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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

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Ganezh [65]

Answer:

So 400 stamps

African---> 100

Indian------> 1/10 x 400

= 40

European---> 400-40=360

1/3 x 360

= 120

so 120+40+100= 260

400-260

= 140 stams from US

6 0
3 years ago
Find the difference 7 5/8 - 2/6 / 8​
NNADVOKAT [17]

Answer:

7 7/12

Step-by-step explanation:

5 0
3 years ago
Okay so clearly I'm not so smart but I need help again..?
Alla [95]
Lateral surface area, is the area  that is not including bases
so it is an area of free rectangles
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5 0
3 years ago
What is the volume of the cone to the nearest cubic millimeter? (Use ​π = 3.14)
Vladimir [108]

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Step-by-step explanation:

V=πr^2h/3

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5 0
3 years ago
Find the value of c 3-2(1 + 6c) = -35
Alex777 [14]

Answer:

C = 3

Step-by-step explanation:

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7 0
2 years ago
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