Question

Question 1

A county reports 250 deaths with a population of 500,000. What is the mortality rate?

For the same month last year, the mortality rate was .42 Have deaths increased, decreased, or stayed the same?

Possible answers:

Mortality rate is 0.5 per 1000

The death rates have increased.

Answer 1

Mortality rate is 0.5 per 1000 habitant

the number of deaths have increased (from 210 to 250)

Explanation:

Hello

Mortality rate is the number of deaths in a specific population,usually expressed in units of deaths per 1,000 individuals per year

`Mortality\ rate\ (S)= ((D))/((P)) *10^(n) \\\\\\\\`

where

S=Mortality rate

D=deaths

P= population

n= is a conversion form ,such as multiplying by 10^{3}=1000, to get mortality rate per 1,000 individuals( we will use n=3)

step 1

asign

S=unknown

D=250

P=500000

n=3, (for each 1000 people)

step 2

Replace

`S=(250)/(500000)*1000\\S=\ 0.5\ per\ 1000`

Mortality rate is 0.5 per 1000 habitant

step 3

what if S=0.42

S=0.42(assuming it is 0.42 per 1000,n=3)

D=unknown

P=500000

`(S)= ((D))/((P)) *10^(n)\\\\isolatin D\\\\S*P=D*10^(n)\\ D=(S*P)/(10^(n) ) \\\\and\ replacing\\\\D=((0.42)*(500000))/(10^(3) )\\\\ Deaths=210\\`

the number of deaths have increased (from 210 to 250)

Have a great day