To get an accurate idea about the shape of a distribution,
a. relatively large samples of data are needed.
b. computer programs are needed.
c. three-dimensional plots are usually helpful.
d. stem-and-leaf displays are the only accurate methods of presentation.
A
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Which of the following is the proper order of Piaget's four stages of cognitive development?
A) preoperational, sensorimotor, concrete operational, formal operational B) formal operational, concrete operational, sensorimotor, preoperational C) concrete operational, formal operational, sensorimotor, preoperational D) sensorimotor, preoperational, concrete operational, formal operational
In order to demonstrate pretend play, a child must
a. possess language. b. have the ability to construct a mental representation of an event. c. have reached the concrete-operational stage of thinking. d. prefer parallel to associative play.