Out of 50 randomly chosen adults age 65 or older at least 30

Out of 50 randomly chosen adults age 65 or older, at least 30% had a Facebook account. What is the complement of this description?
A. Fifteen or fewer had a Facebook account.
B. Fewer than fifteen had a Facebook account.
C. Fifteen or more had a Facebook account.  
D. None of the above
Out of 50 randomly chosen adults age 65 or older, at least 30% had a Facebook account. What is the complement of this description?
A. Fifteen or fewer had a Facebook account.
B. Fewer than fifteen had a Facebook account.
C. Fifteen or more had a Facebook account.  
D. None of the above

Solution

according to the data atleast 30 % hs facebook account. 30% out of 50 is approximately 20. Atleast 20 members has a facebook account. Option C is right.

 Out of 50 randomly chosen adults age 65 or older, at least 30% had a Facebook account. What is the complement of this description? A. Fifteen or fewer had a Fa

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