The super high IQ kids that the famous eugenicist IQ researcher in California studied had this nickname: the "______________"
Added by Juan Jos- S.
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Psychologists in their study of intelligence often use an index called IQ. IQ varies directly as mental age MA and inversely as chronological age CA (up to the age of 15 ). If a 12 -yearold boy with a mental age of 14.4 has an IQ of $120,$ what will be the IQ of an 11 -year-old girl with a mental age of $15.4 ?$
Polynomial and Rational Functions
Variation and Modeling
The table below shows the results of a survey in which researchers examined a child's IQ and the presence of a stupid gene is the child. Gene Present Gene not Present Total High IQ 33 11 44 Low IQ 12 27 39 Total 45 38 83 I.The Probability that a randomly selected child has Low IQ or Gene Present is closest to: II. Given that the gene is present in a child, the probability that he/she will have Low IQ is closest to
Joanna Q.
When the Stanford-Binet IQ test came into use in 1932, it was adjusted so that scores for each age group of children followed roughly the Normal distribution with a mean of 100 and a standard deviation of 15. The test is readjusted from time to time to keep the mean at 100. If present-day American children took the 1932 Stanford-Binet test, their mean score would be about 120. The reasons for the increase in IQ over time are not known but probably include better childhood nutrition and more experience taking tests. (a) IQ scores above 130 are often called "very superior." What percentage of children had very superior scores in 1932? (b) If children today took the 1932 test, what percentage would have superior scores?
Ahmet Y.
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