Amedical study investigated the effect of calcium and vitamin supplements on the risk of older americans for broken bones. a total of 389 older americans who lived at home and were in good health were studied over a three-year period. while all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin d through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin d daily. of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. of the 202 older americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.

what fraction of older americans who were included in the study suffered broken bones during the three-year period?

a.
26/202

b.
37/389

c.
26/389

d.
11/187

e.
11/389

Step-by-step explanation:

Given that a  medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A total of 389 older Americans who lived at home and were in good health were studied over a three-year period. While all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin D through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin D daily. Of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. Of the 202 older Americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.

                     Group I           Group II           Total

n                      187                  202                389

favour x             11                    26                  37

The fraction of older Americans who were included in the study suffered broken bones during the three-year period

=Total x/total n

=

i don't even know man. edge inuity be messing with us. i had to ask a question too.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.