In order to study the relationship between uranium mining and lung cancer in west virginia, 3,500 people with incident lung cancer were identified through cancer registries. 4,300 people without lung cancer were selected from the dmv registries. uranium mining data was collected through mailed questionnaires. uranium mining was reported by 925 of the people with lung cancer and 955 of those without lung cancer respectively, while the others reported no uranium mining.
what study design was employed? mention in short answers the key characteristics that make this a . (2 points)
calculate and interpret the appropriate measure of association for the uranium mining and lung cancer association. show your work.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

a

step-by-step explanation:

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event

one triangle is 2.5 times bigger than the other triangle.