Which category of sampling is used when the probability of selecting each individual in a population is known and every member of the population has an equal chance of being selected?
A. probability sampling
B. nonprobability sampling
C. both probability and nonprobability sampling could be correct
D. neither probability nor nonprobability sampling could be correct
Answer: A
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a. Jill, who is 24 years old b. Jack, who is 56 years old c. Betty, who is 71 years old d. Diane, who is 18 years old
Patsy and Terry are fraternal twins. This type of twinning results from __________
A) a zygote that duplicates and separates into two clusters of cells B) the fertilization of one ovum by two Y-bearing sperm C) the release and fertilization of two ova D) the fertilization of one ovum by two X-bearing sperm
Which of the following allows for the attainment of Piaget's concept of conservation?
a) sensorimotor thought b) reversibility c) naïve idealism d) the personal fable
Kendra, an eighteen-month-old toddler, watches as her big brother crumples up wads of paper and tries to toss them through a small basketball hoop. After seeing this, Kendra is most likely to ___
a. imitate her brother's behavior, but only if he gets some of the wads through the hoop b. imitate her brother's behavior, but only if he does not get any of the wads through the hoop c. imitate her brother's behavior regardless of whether or not he gets some of the wads through the hoop d. not imitate her brother's behavior