When each element in the population has a known, and equal probability of being selected into a sample, this type of probability sampling is called ______.
a. simple random sampling
b. systematic sampling
c. stratified sampling
d. cluster sampling
a. simple random sampling
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When increasing the level of confidence from 95% to 99%, we:
a. lose confidence but gain precision. b. lose precision but gain confidence that our answer interval is accurate. c. lose precision and lose confidence that our answer interval is accurate. d. none of the above
Which drug have police in America ranked as the # 1 drug the battle today?
a. crack cocaine b. powered cocaine c. heroin d. methamphetamine
Individuals can plan their future promotion and development through such activities as
a. undertaking academic coursework and participating and leading in civic events. b. attending voluntary conferences and training sessions. c. guest lecturing in college or academy classes and engaging in research. d. All of the above
__________________ fingerprints are those not taken directly from suspects by police, but rather are obtained from evidence such as cups, glasses, weapons, and other surfaces
Fill in the blank(s) with correct word