Identify which of these types of sampling is used: simple random, stratified, systematic, or convenience.A researcher interviews 19 work colleagues who work in his building.
A. Stratified
B. Systematic
C. Simple random
D. Convenience
Answer: D
Mathematics
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Multiply.(-12x3)(-1)
A. 12 B. 1 C. 12x3 D. -12x3
Mathematics
Provide an appropriate response.The person or entity receiving the coverage under an insurance policy is called the beneficiary.
A. True B. False
Mathematics
Solve the problem.A rock falls from a tower that is 93.1 m high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 1800 s B. 9.6 s C. 9.4 s D. 4.4 s
Mathematics
Round the money amount to the specified place.$.3201 to the nearest cent
A. $0.32 B. $0.3201 C. $0.320 D. $0.33
Mathematics