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Assume That a Researcher Randomly Selects 14 Newborn Babies and Counts

question 107

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Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities
corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table.  Probabilities of Girls x( girls ) P(x) x( girls)  P(x) x( girls)  P(x) 00.00050.122100.06110.00160.183110.02220.00670.209120.00630.02280.183130.00140.06190.122140.000\begin{array}{l}\text { Probabilities of Girls }\\\begin{array} { c | c | c | c | c | c } x ( \text { girls } ) & P ( x ) & x ( \text { girls) } & P ( x ) & x ( \text { girls) } & P ( x ) \\\hline 0 & 0.000 & 5 & 0.122 & 10 & 0.061 \\1 & 0.001 & 6 & 0.183 & 11 & 0.022 \\2 & 0.006 & 7 & 0.209 & 12 & 0.006 \\3 & 0.022 & 8 & 0.183 & 13 & 0.001 \\4 & 0.061 & 9 & 0.122 & 14 & 0.000\end{array}\end{array}
-Find the probability of selecting 2 or more girls.


Definitions:

Lewis Terman

A psychologist known for his work in intelligence testing and the longitudinal study of gifted children.

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Wechsler Adult Intelligence Scale, a standardized test designed to measure intelligence in adults and older adolescents.

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A newer understanding of short-term memory that adds conscious, active processing of incoming sensory information, and of information retrieved from long-term memory.

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A test designed to assess what a person has learned.

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