You Were Told That the Mean Score on a Statistics

question 130

Short Answer

You were told that the mean score on a statistics exam is 75 with the scores normally distributed.In addition,you know the probability of a score between 55 and 60 is 4.41% and that the probability of a score greater than 90 is 6.68%.What is the probability of a score between 55 and 90?

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Definitions:

Postoperational

This key term seems to be a misinterpretation or typo and does not directly align with a widely recognized psychological term. If referring to Piaget's stages, the correct term might be "Concrete Operational" or "Formal Operational."

Piaget

A Swiss psychologist known for his theory of cognitive development that describes how children develop intellectual abilities.

Cognitive Development

The study of how thinking, problem solving, and intelligence evolve from childhood through adulthood.

Psychosocial Development

Erikson's theory that individuals pass through eight developmental stages, each characterized by a different psychological crisis.