bailee37
12.08.2020 •
Mathematics
Form a group of 17 women and 11 men, a researcher wants to randomly
select 5 women and 5 men for a study. In how many ways can the study
group be selected.
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Ответ:
17C5+11C5
Step-by-step explanation:
Well there are 17 and chooses 5 that's 17C5
there are 11 men abd chooses 5 that's 11C5
so add them up
17C5+11C5
Ответ:
Then the second one will be n+1
The sum will be n + n+1 = 2n + 1
Question is 2n + 1 always odd or always even?
The answer is always odd.