Identify the type of sampling described by the proposal.A statistics student interviews everyone in his apartment building to determine who owns a cell phone.
A. stratified sample
B. cluster sample
C. simple random sample
D. systematic sample
E. convenience sample
Answer: E
Mathematics
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+ 
+ 
+ . . . + 
A. 
B. 
C. 
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A. 25 B. 32 C. 120 D. 10
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What part of the object or set of objects is shaded?
A. 
B. 
C. 
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Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.
+ 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
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