Iq of a person is given by the formula where ma is mental age and ca is chronological age. If for a age group of 12 years old children, find the range of their mental age.
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a person is given by the formula where ma is mental age and ca is chronological age. If for a age group of 12 years old children, find the range of their mental age.
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Explanation:
➡️ IQ was originally computed by taking the ratio of mental age to chronological (physical) age and multiplying by 100. Thus, if a 10-year-old child had a mental age of 12 (that is, performed on the test at the level of an average 12-year-old), the child was assigned an IQ of 12/10 × 100, or 120.
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