The answer to this question is: <span>groups have equal and balanced composition.
</span>Which means that each groups in experimental research are not displaying the too mcuh difference in term of average characteristics.
This will make sure that the data that acquired during the research are stable and can be trusted (not affected by a special variance)
dotnt ask me about high school stuff
Answer:
$20 million
Explanation:
The net of accumulated depreciation is the cost of the road minus accumulated depreciation till date.
Accumulated depreciation=yearly depreciation* 20 years
yearly depreciation=cost/useful life
cost is $30 million
useful life is 60 years
yearly depreciation=$30 million/60 years=$500,000 per yer
accumulated depreciation=$500,000*20=$10 millon
net of accumulated depreciation=$30 million-$10 million
net of accumulated depreciation=$20 million
As a result,option A is the correct answer
Correct option is a: low income
Hiv and aids disproportionately impact low income nations.
Acquired immunodeficiency syndrome or AIDS is a chronic and potentially life-threatening condition which is caused by the human immunodeficiency virus (HIV).
By damaging the immune system, HIV interferes with the ability of the body to fight with infections and diseases.
HIV is a sexually transmitted infection (STI). HIV can also be spread by contact with infected blood or it can also spread from illicit injection drug use or sharing needles of infected person.
It can also be spread from mother to child during pregnancy or at the time or childbirth or breastfeeding.
To know more about HIV/aids here:
brainly.com/question/22072504
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